Avid fans of LOST have located many, many mistakes on LOST regarding props, dates, discrepancies in the hatch, changes that occur in the hatch mural, jewelry that appears and disappears or moves from one part of the body to the another, flipped shots that result in mirror images, sudden changes in clothing, etc.

My goal is to try to list all the 'mistakes' in one place. To date, these are the most comprehensive lists of the LOST 'mistakes' available anywhere.

What you will not find in this list are lots of the instances where a piece of production equipment is inadvertently seen, or a shot that has obviously been flipped such as those described by Richard Sickler on the S2 DVD. An example of one of these, is when the shots are flipped to give the impression of a car with a right-sided steering wheel vs. a left-sided steering wheel. These types of images are only included here if one or more item changes and everything else in the shot stays the same (i.e.: Eko's earring changes ears while everything else in the scene stays the same S2E10).

The other type of 'mistake' that I have not included in the list is those specific instances where a scene used in the opening "previously on LOST" segment shows us a slightly different view of what was said, or how it was said, than what was actually shown in the previous episodes. These so called 'mistakes' occur in many, many instances where we are supposed to be seeing a repeated scene. I just think that fans need to be aware that these 'mistakes' are numerous and occur regularly on this show. Do they mean something specific? Maybe, or maybe it may be an indication that the video game doesn't always reproduce the scene in exactly the same way when it is shown again.

TPTB have stated that many of these 'mistakes' are simply errors that occurred in editing and that LOST fans shouldn't pay much attention to them. According to JAVI over on The Fuselage, "Sometimes a cigar is just a cigar".

However, TPTB have also stated that some of the so-called mistakes are actually intentional and that they are important to LOST.

That leaves the viewer wondering which of the 'mistakes' are important and which of the 'mistakes' probably do not mean anything. There are many threads on a variety of boards that discuss these mistakes and their possible importance.

I have also assembled a list of Mistakes That Are Important. This list includes items that are just too important to the story to be as carelessly handled as they would appear to be.

I am referring to the 'mistakes' that occur with the single most important prop that each of the LOSTies is associated with. I simply can not believe that the most important props on the show would be dealt with so carelessly and I do not believe that there is a snowball's chance in hell that the Props Department is solely responsible for these. The person responsible for these types of errors would, at best, be damn sure they didn't happen again. And, at worst, they would be fired.

I believe these are not casual 'mistakes', but 'mistakes' that the audience is meant to find and that they mean something. Perhaps the prop changes depending on the role that the character is in at that particular moment.

Ben's Picture
The picture of Ben's mother has changed from a younger woman with hair down over her left shoulder, to the version of the picture seen in S4E7 where she is an older woman with no hair over her left shoulder. The older version of the picture is also seen in S4E9.

Charlie
After watching Charlie's guitar for three seasons, I have still been unable to find any differences with either it, or the guitar case. However, in S3E21 there were many differences seen with the props associated with Charlie.

The most notable of these can be found in Charlie's list of his "Greatest Hits". We see Charlie's list on five different occasions as he starts with #5 and then adds #4, #3, #2 and finally #1 to the list. But if you compare the list as it is seen each time he adds something to it, there are big differences in the list. Look at the list when he is adding #4, the words "First Time" are separated, they were connected in #5. When he adds #3 to the list, the position of the word "Butlin's" has changed position in relation to the word "radio"; and the words "First Time" are now connected again. There are also big differences in the presence of absence of the periods after each entry on his list. And there are distinct differences between when he adds #2 and #1. The placement of the words "Hero" and "Covent" are different in relation to each other.

In S3E21, Charlie is seen placing the Drive Shaft ring on his middle finger when Liam gives it to him and Charlie announces "It fits". Yet, when Charlie is seen wearing the ring on the street corner near Covent Garden he is wearing the ring on his fore finger.

The length of Charlie's necklace also changes constantly throughout S3E21. It some scenes it hangs down over the neckline of his t-shirt and in other scenes, it is much shorter.

Claire & Her Diary
In S1E2, the diary that Claire is shown writing in appears to be a very dark blue, even black in color with a stiff cover.
In S1E14, the diary that Sawyer gives to Charlie is a brighter blue and has a soft cover. Also, see the screen cap from the scene where Charlie tries to avoid reading the diary, it is soft covered and the brighter blue color

There are also some curious differences in the handwriting shown in Claire's diary in S1E14. Look carefully at the a's. It appears as if two different people have written in her diary. It's also interesting to note that the top two screen caps from the diary seem to be typical of the dialogue we expect from Claire, all sweetness and 'light' and that the bottom screen cap contains words like HATE and suck. It could be an indication of Claire being in a 'good' role when she writes the top parts and a 'bad' role when she writes the part in the bottom screen cap.

Daniel's Map Back to the Boat
In S4E5, two different versions are shown of the map that Daniel drew for Frank to get back to the boat. The boat is drawn differently, the writing is different and they are positioned differently on the instrument panel.

The inscription in Daniel's diary that was written by Eloise Hawking is different in S5E14 and S5E15.

Desmond's Picture of Penny & Her Letter
There are two different versions of Penny's Letter, Letter 1 and Letter 2 and there are also two versions of the picture of Desmond & Penny. Penny is wearing a black shirt the first time we see her picture in S2E3. In S2E24, there is a different Penny and she is wearing a white shirt. Different actress, yes, but why change what she is wearing? And why go to so much trouble to have her clothes completely reversed from a black blouse with a white t-shirt underneath to a white blouse with a black t-shirt underneath?

Eko & the Drug Plane
Eko is responsible for bringing the Beechcraft with the heroin to the island. When the plane is on the tarmac in Nigeria it had large numbers on it's side S2E10, but when Eko makes Charlie take him to the plane in S1E10, the numbers are different and smaller.

Hurley & The Lottery Ticket
In S1E18, the numbers are seen near the top of the lottery ticket.
In S2E4, the numbers are shown near the top of the lottery ticket at the beginning of the episode and then every other time it is shown in this episode the numbers are closer to the bottom of the ticket.

Jack & His Father's Body/Coffin
In S1E4, when Jack sees the empty coffin, the things lying on it change between shots, and the lining changes from one shot to the next. The amount of destruction Jack has done to the coffin also changes between shots.
The only other item that Jack has with him after the crash is a Russian vodka bottle.

Jin & Mr. Paik's Watch
The most interesting mistakes about Jin, Michael and Mr. Paik's watch occur during the fight scene in S1E6 where the watch appears and disappears from Michael's wrist. But the watch that Jin is wearing in these scenes appears and disappears as well.

Kate & The Toy Plane
In S2E9, there are no numbers on the wing of the plane
In S1E12, the numbers 5025 are on the top of the right wing of the plane, also seen here when Kate holds up the plane

Kate's Trial
Most of Kate's crimes are state crimes and she’d be tried in the state of her crimes. The charge of assault on a Federal officer would probably be a federal crime and be tried in a different court. But none took place in LA and there’s no reason she’d be tried there.

Locke & His Compass
In S1E13 and in all other episodes, Locke's compass is silver.
In S1E13, the compass is gold when he hands it to Sayid.

Locke's Date of Birth
Locke's license and the firearms permit show two different birth dates. Also, in California, driver’s licenses use your birth date as an expiration date. In addition, the zip codes do not match. The zip code on the Firearms permit is 94099 (which is South San Francisco, not a San Francisco Zip Code (it is another city), and on his license is 94131 (which is San Francisco). In addition. Emily Locke's driver's license said her date of birth was 1940. So was Emily Locke 6 years old when she gave birth to Locke? And why does her driver's license say that the license expires on 3-20-94 when it also says that the driver's license "expires on birthday". In S3E13, we were given an entirely different date of birth for Locke on the paperwork that Tamara the Social Worker is filling out. These papers appear to say that his Date of Birth is 5/20/56.

Michael & His Letters to Walt
Look at the two pictures, one is of Michael when he is sketching the card, the second is the finished card. Note the differences in the window on the equipment, the size and location of the cake, the position of the feet and bandages and lots more.

Rose & Bernard's Wedding Ring
In S1E1, Bernard’s wedding ring is not on the chain around Rose’s neck when she is speaking to Jack as he gets up from his seat just before the plane crash.
In S1E1, the ring is on her neck when she is seen on the beach immediately after the crash.

Sawyer & His Letter to the Real Sawyer
In S1E16, Sawyer is seen reading the letter he wrote to the Real Sawyer.
In S3E19 Sawyer gives Anthony Cooper the letter to read
The letter shown in S1E16 is much shorter than the letter that Anthony Cooper reads

Sayid & His Pictures of Nadia
There are differences in what is written on the back of Nadia's picture from one scene in S1E9 to another, the writing is actually reversed. The wording on the back of the picture has also been deliberately changed from the common Arabic phrase which means that they would meet in heaven vs. the wording which now says that they will meet in "another life"

The Plane
In S1E1 the wings of the plane are still attached to the fuselage
In S3E1, the wings of the plane break off while the plane is still in the air

Walt & Vincent
I'll be going back to get screen shots of Vincent and his leash, it has been blue in some episodes and red in other episodes. In S3E21 Hurley is seen with Vincent on a leash that is made from what appears to be chain.

Dating & Timing
Dating & timing have been a issue on LOST since the very first episode. Beginning with the many pieces of information that have caused the crash date to be debated (the 2004 vs. 2009 controversy).

Some dating mistakes have been explained by TPTB.

TPTB have stated that the date on Jin's resume was a production error. That the postmarks on Michael's letters to Walt that were featured on the Oceanic-Air.com website do not match the timing when Susan and Walt were living in specific countries and were an error. And that the date from Jack's luggage tag was just wrong.

I firmly believe that the writers are deliberately including conflicting dates and timelines in numerous episodes. TPTB stated in the May 26, 2006 podcast that the date of the crash was September 22, 2004, I remain convinced that the date of the crash and the timing conflicts are key to LOST.

During Comic Con in July 2006, TPTB stated that "the survivors may not actually be on the island as long as they think they have been." So, it looks like we will be getting more dating and timing conflicts in Season 3. I still find it curious that only two years were ever indicated for the date of crash. Either 2004 or 2009. If these are truly random errors then why do they always only point to one of these two years?

There are some other dating issues have not been explained, including:

• In Season 1 Boone dies on day 36. Yet, Bernard speaks to him on the radio on Day 41 in S2E7.

• In S2E7 Cindy says that the plane was flying for 6 hours before the pilot turned around and flew for 2 hours in the wrong direction. This equals a total of 8 hours of flight time. Yet, Ana Lucia says that they were flying for 2 hours and she didn't see Nathan on the flight.

• In S2E11, the x-ray is dated 11/16/2005

• In S3E1 Christian Shephard is shown driving a 2007 Mercedes up to the hotel (confirmed by Mercedes-Benz of San Diego)

• Locke's license and the firearms permit show two different birth dates. Also, in California, driver’s licenses use your birth date as an expiration date. In addition, the zip codes do not match. The zip code on the Firearms permit is 94099 (which is South San Francisco, not a San Francisco Zip Code (it is another city), and on his license is 94131 (which is San Francisco). In addition. Emily Locke's driver's license said her date of birth was 1940. So was Emily Locke 6 years old when she gave birth to Locke? And why does her driver's license say that the license expires on 3-20-94 when it also says that the driver's license "expires on birthday". In S3E13, we were given an entirely different date of birth for Locke on the paperwork that Tamara the Social Worker is filling out. These papers appear to say that his Date of Birth is 5/20/56.

• In S3E14 Locke is watching the episode of Expose that Nikki finished just before leaving Australia in 2004. However, Locke is not paralyzed and we were told that he spent four years in the wheelchair before he went to Australia.

• In S3E17, in Desmond's last flashback, he was in the monastery in 1995 before he met Penny; yet, in S3E8 it was 1996 and he'd been with her for two years.

• In S3E18 Juliet says that it is Saturday when she leaves the message for Ben, yet early in the episode she referred to the LOSTies having been there for 90 days. Day 90 would actually be a Monday. Day 88 would have been a Saturday.

• In S3E20, the books on the classroom shelf include "The Coalwood Way" by Homer Hickam. It was published in 2000. This scene is supposed to take place some time in the 1970's

• S4E5, the Black Rock leaves England in 1845, but dynamite, which was invented in1866, was found on the Black Rock

• S4E6 Juliet says it's been three weeks since they lost Ethan, but in fact, Ethan did not die until day 29

• S4E7, in Jin's flashback, he pulls South Korean won bills that recently came into circulation out of his wallet. The 10,000 won bills he pulls out were released on January 22, 2007

• S4E7, the first scene of Jin in the toy store shows items on the back shelf from the shows Ben 10 and Power Rangers: Operation Overdrive. These shows did not begin airing until 2007. Another shelf carries Nintendo DS and PSP consoles, which were not available until late 2004

All 'Mistakes'

S1E1
• After the plane crashes, the same people keep running in and out of the background behind the main characters
• When Kate finds the pilot's wings (pin) in the mud, the pilot's reflection is seen in the water as he lies on the branches. Later when Jack looks up, the pilot's position has changed and he is lying on different branches
• Watch Jack's t-shirt when he drops to his knees and takes it off. The positions of his shirt and t-shirt change
• When Charlie leaves his seat on the airplane, as he is followed by the stewards, he walks through economy (blue stripe seats), then walks through business class. But, in Charlie's next close-up, when the plane shakes, he leans on the blue seat in front of him, which he already passed and is farther back in the plane's cabin
• When Charlie, Kate and Jack are in the nose wreckage, to find the transceiver, there is a shot in first class, facing the cockpit, showing the glass wall with the decorative circular design. When Charlie is aboard the flight, running from the stewards, he stands beside that glass wall, and the circular pattern is reversed. Neither shot is flipped
• Jack, Hurley and Claire are running from the wing that is falling down, as Jack says "stay with her", Hurley has a big piece of his hair across his forehead that appears and disappears between shots
• When Kate, Jack and Charlie are talking to the pilot, the blood on the pilot's face changes position
• The ring is on Rose's chain in S1S1 when she is seen kissing the ring (DVD 13 minutes). Rose does not have Bernard's ring on the chain around her neck during her conversation with Jack just prior to the crash S1E1 (DVD 22 minutes). This scene is immediately prior to the crash and Bernard is already in the bathroom. Rose should have had his ring on the chain by then

S1E2
• When Jin offers Claire some of the sea urchin, the position of the book changes in her hands
• Watch as Sawyer and Sayid are fighting and Jack tries to pull Sawyer away. Sayid is first holding onto Sawyer's shirt, next he is holding onto his pants
• There is also a repeated shot during the fight scene when Jack is shown grabbing Sawyer's left arm twice
• When Sayid is taking the transceiver apart, the part in his hand seems to move back and forth from his right to his left hand, to the table
• As Jack, Charlie and Kate are walking through the woods, Jack is holding the transceiver and Charlie asks if he hears anything. Jack answers "You keep asking if there's anything", while holding the transceiver with his right hand and his left hand is down. When it cuts he holds on to the transceiver with both hands
• On the airplane, Kate lifts the glass of juice with her handcuffed hands, in this close-up the cuff round her right wrist has the single bar facing out. However, when the turbulence hits, in another close-up of her hands, the same cuff is on the opposite way, it now has the double bar facing out
•During the flashback, Charlie goes to the bathroom at the front of the plane. Once the plane hits turbulence, Charlie gets out of the bathroom and is able to make it back about 10 rows before strapping himself into a grey seat, not the blue seats found in coach class. Boone and Shannon were seated in Business Class in grey seats, so Charlie is probably seated somewhere near them when the plane goes down. Sawyer says that Sayid was seated in business class near him in S1E2. Sawyer is seen sitting on a grey seat on the beach in S1E8. When Kate, Charlie and Jack visit the front section of the plane, this section contains at least 10 windows which would imply that the first 10 rows of seats are there. So how could Sayid, Sawyer, Charlie, Boone and Shannon wind up on the beach and not wind up with the front part of the plane?

S1E3
• The endless line of telephone poles seen as Kate & Farmer Ray and the Marshall drive along the road repeatedly switch sides
• The tailgate on the pickup truck is present, then it disappears, then it is back again. Also watch the cab window behind Kate and Farmer Ray, it switches from being closed to being open. When Kate grabs for the steering wheel in the side exterior shot, the stunt driver is visible and he is holding the steering wheel with his right hand. Farmer Ray has a prosthetic right hand and is previously seen holding onto the steering wheel with his left hand
• Watch Farmer Ray's bruises, his suspenders and his wedding ring as Kate drags him away from the burning pickup, his bruises switch position, his suspenders are not clasped & then they are, and his wedding ring changes from his left hand to his right hand. Kate's bracelet also switches wrists. And Farmer Ray's hat moves from being dropped beside the door to being about eight feet away
• Sun's face changes from being only slightly dirty to completely dirty as she is bringing the luggage to Jin and he tells her to "Go wash up"
• While Michael searches for Vincent and meets up with Sun, his shirt changes back and forth from being wet from the rain to, dry
• The position of the firewood changes when Kate is building the fire, to it's configuration when Sawyer joins her
• When they make camp for the night, on their way back from hearing the French woman's transmission, they sit around the fire talking. Sawyer has a cut over his right eye, but in every other close-up of Sawyer the cut is over his left eye
• As Kate leans over the marshal, he wakes up and chokes her and as Jack subdues him the marshal's large head bandage falls off. When Jack squeezes water into the marshal's mouth, the bandages are wrapped perfectly round his head, yet when Kate stands up the bandages are off again
• When Jack removes the paper with Kate's mug shot from the marshal's jacket pocket, in the close-up of the paper there is no writing at the top center of the paper, only at the sides. However, in the previous shot the center writing is visible from behind, and is also perfectly seen when Hurley finds the paper
• Watch Walt's sleeping position as Locke tells Michael "I thought you should be the one to bring his dog back to him". Walt is facing away from Michael, then faces towards Michael and then faces back away again
• Kate eats bacon when Farmer Ray feeds her, but in S1E4 she tells Jack she is a vegetarian

S1E5
• There is a safety wire visibly attached to Jack's waist as he is hanging off the cliff and the number of leaves on the vine changes from its appearance in wide-shots to its appearance in close-up shots
• When Charlie and Hurley are questioning Jack in the tent, a man and a woman walk behind Jack in the same direction twice
• Watch the suitcase filled with water bottles, the number of bottles appears to keep changing
• Boone's sitting position changes during the conversation when Sawyer asks him "So how does it feel?"
• When Jack sees the coffin, the things lying on it change between shots and the lining changes from one shot to the next. The amount of destruction Jack has done to the coffin also changes between shots
• In S1E1, Kate sews up the deep cut on Jack's back. When he dives into the water (twice) to attempt to rescue Joanna, it is only 6 days later and the cut is gone. How could Jack have healed so quickly?

S1E6
• When Sawyer removes the handcuffs from his pocket, the chain is shorter than it is when we see Jin chained to the wreckage
• As Jack and Kate head back to the beach, the bag on Kate's shoulder keeps switching positions
• Kate takes her shirt off in the cave when she is fighting off the bees, but when Charlie walks in, he says she left it outside the cave
• There is a large blood stain on Jin's right elbow when he is washing his hands. In the next shot the stain has disappeared
• When Jin attacks Michael, the wreckage on the beach beside the wheels is seen behind Sun as she shouts at Jin. When Jin is handcuffed, the wreckage on the beach differs, there is noticeably much more in that area
• Sun's left earlobe has a cleft, but while Jin is still cuffed to the wreckage, Sun watches Michael head off through the trees (to cut firewood) and in this close-up it is Sun's right earlobe with the cleft
• The way Sun is holding the puppy switches between shots
• At the party when Jin and Sun are standing together, Sun place her arms on Jin's shoulders. Her arm's position on the shoulders differ between the shots
• At the end of the episode, while Jack is filling his water bottle, his tattoo is on his right arm, not on his left
• The tattoo also switches arms when Jack is in the second fight with Ethan
• As Michael is surprised to learn that Sun can speak English, the arm he has extended changes
• In S1E1, Kate sews up the deep cut on Jack's back. When he dives into the water (twice) to attempt to rescue Joanna, it is only 6 days later and the cut is gone. The cut is also gone in S1E6 when he takes off his shirt in the cave during the bee attack. How could Jack have healed so quickly?
• The gold watch disappears from Michael's wrist when Jin is fighting with him in the water. Also, in the first six episodes, Michael is usually shown wearing a watch. In S1E1, S1E2, S1E3 and S1E4, Michael is wearing a watch on his left wrist that has a brown leather strap. In S1E5 Michael doesn't wear either watch. In S1E6, Michael wears the gold watch on his right wrist. Also, keep an eye on Jin's wrist. his watch appears and disappears as well

S1E7
• When Charlie and Liam are speaking outside the church, Charlie's scarf changes position
• When Charlie visits Liam, the items on the table near the lemonade pitcher switch positions
• We see the suitcase fall from the net when they are trapping the boar, a few scenes later, the suitcase is still falling
• Watch Charlie's guitar case, we see it on the ground behind Charlie when he is playing and Hurley then brings the case to him
• There is a brief shot of the tape on Charlie's fingers being on his right hand instead of his left hand as he is looking through Jack's drugs

S1E9
• The foot that Sayid gets caught in the trap changes from left to right, and the branch that he is stabbed with changes
• After they discuss Nadia, the position that Danielle is holding the gun in that she is pointing at Sayid changes
• When Sayid holds the music box open for Danielle to see, in the shots facing Sayid he holds it facing out towards Danielle, but in the shots facing Danielle, the box faces to the side
• The cable Sayid finds in S1E9 is grey, the cable Hurley finds in S1E18 is black. They are obviously different cables
• Emily Locke clearly has blue eyes, but her driver's license says that they are brown

S1E12
• The bandage on Sawyer's arm changes from the type seen before he enters the water, to the one seen in the underwater shots
• The position of the corpses and their clothing changes (look at the the left foot) from one shot to the next
• Kate's bracelet appears, disappears and changes wrists when they are at the waterfall
• The Halliburton has different handles and clasps from one shot to the next throughout this episode
• When Jason the bank robber kisses Kate in the office, the position of his hands change
• As Kate is getting whacked in the face by Jason, she is struck on the left cheek. When she exits from the office to the bank lobby, her right cheek is hurt
• The design of the wings and the engines of the toy plane are very different from those seen in other episodes
• Shannon's shawl is lying to the left of her just before Sayid approaches. When he begins speaking with her, the shawl is under her. Also watch the sandals change position
• There are two different wallets used in the scene where Jack and Kate dig up the Marshall
• When Boone accuses Shannon of not helping to move the camp away from the rising tide, he is wearing a t-shirt with a Chinese character on it that stands for 'good' and 'evil'. Moments later, his t-shirt has changed. I am not sure yet of the significance of the Chinese characters, but I am convinced that they are somehow important
• The position of the blinds behind the bank Manager (Mark Hutton) changes. First they are up and then down. Also, the position of the phone on his desk changes. And the light with the big globes behind Kate is not lit and then it is on

S1E13
• Locke throws the knife and it lands at a 45 degree angle, when Boone reaches for it, the knife is at a 90 degree angle
• Locke's bag changes from being on his left shoulder to being across his chest. So does Boone's
• Sun's watch appears and disappears
• When Boone is tied up, his right hand is tied to his chest and his left hand is tied behind his back. This reverses when Boone reaches for the knife with his right hand
• In this episode and in all previous episodes, when Locke is shown wearing the compass on his vest, it is silver colored. When he takes the compass off his vest and hands it over to Sayid it is gold colored. Sayid later discovers that the compass is defective. Is this showing that Locke is not cooperating because he actually hands over a compass that he does not generally use or rely on?
• When Sayid is trying to make a compass, the objects on top of the map change positions. Watch the knife and the plastic container.

S1E21
• The body on the stretcher appears and disappears from the shot and the back door of the vehicle is opened and closed in different shots
• Sayid places a glass mug on the table, when the bug is dropped into it, it is a different mug
• Sayid's name tag flips
• Essam's shirt changes positions over his shoulder in the garage scene
• The rips and the hole in Sayid's black tank top change throughout the episode
• The octagonal box appears in Essam's house S1E21, in Wayne Jensen's house in S2E9 and in the Swan hatch
• The blanket around Aaron changes positions throughout the episode
• At the Nigerian plane, the tool chest on the plane is closed, yet it's open in the next shot
• Sayid is told that Nadia is alive in S1E21, but in S1E9 he told Danielle she was dead. How can Nadia be dead in an earlier episode and alive in this episode? Perhaps we will find out that Sayid is told that Nadia is dead after all. This would have to occur sometime between the initial meeting with Sayid, Alyssa Cole and Robbie Hewitt and when Sayid gets on the plane the day after Essam commits suicide

S2E15
• Claire wears silver rings on the index finger and thumb of her left hand throughout the episode. In the final scene, the ring is missing from her index finger
• Ethan's shirt changes from a white checked shirt before he goes to the refrigerator for the vaccine to a brown shirt when he walks away from it
• When Claire hand the baby to Sun, a woman walks behind in a green dress. This seen is repeated the next time the camera cuts to Sun

S3E1
• The items on the breakfast table change positions, from when Kate is approaching the table to when she is seated by Ben/Fake Henry. Watch the ketchup bottle, it's the easiest to see
• Watch Kate's bracelet (or may be an elastic hair band) on her right wrist. It is there as she is walking up to Ben/Fake Henry's breakfast table and then is gone from her wrist later
• Also watch the beach hut itself. As Kate approaches there are visible cross bars in every third part of the hut. When Ben/Fake Henry seats her, three sections of the hut are shown and there are no cross bars visible
• Christian Shephard is shown driving a 2007 Mercedes up to the hotel (this was confirmed as a 2007 model by Mercedes-Benz of San Diego)
• The people seated in the AA meeting change places. Watch the man in the dark shirt and the lady in red. Another man suddenly appears seated between the two of them
• When the Others look up at the plane breaking up in the air, the wings fall off. But in S1E1 both wings were still with the fuselage. There is also a difference in altitude. The plane is flying much higher in S1E1
• The yellow bowl on the shelf in Juliet's house disappears between shots and the items on the coffee table switch positions
• Juliet takes a cd from the shelf - it's clearly Talking Heads' Speaking in Tongues album, the CD she puts in the cd player is the Talking Heads' Speaking in Tongues cd , but Downtown starts to play when she hits the play button

S3E4
• The shirt that Ben/Fake Henry is wearing changes from the one he is wearing when he comes to get Juliet and to the next scene when he is seen running to the group carrying Colleen. Although both are striped, the stripes are different
• The towel is on Sawyer's shoulder when the Warden starts speaking to him, then it is off his shoulder and then it is back on it again
• The position of the fruit in the bucket that Paulo is using changes. Watch the center of the pile, a piece of bruised fruit appears in the middle of the pile that was not there in the previous shot
• Sawyer has his boots on when he gets the fish biscuit, then they are off when he tries to trap Ben/Fake Henry. They are back on when he is brought back to the cage
• The blood stains on Juliet's top change from when she comes to get Jack to when they go into the operating room

S3E8
• The sweat marks on Locke's t-shirt change from when he is in the jungle to when he is on the beach
• As Desmond carries Claire from the water, the red strap is off her shoulder, in the next shot is is back on her shoulder
• This is supposed to be taking place in London, but as Desmond walks down the street toward the recruiting office, he passes American parking meters
• During the February 20, 2007 podcast, Carlton Cuse says that the fact that the military poster had the American spelling of "Honor" vs. the British "Honour" was a production error, "that was a mistake, our bad"
• The position of Desmond hair differs when the photo is taken to what is actually shown in the photo
• Only one photo is taken and Desmond has it on the island. Yet, the same photo was also shown on Penny's night stand in S2E24
• The signs on the news stand change from reading News Agent to News. The fonts also change
• The man with the red sneakers is also wearing a hat with a red feather in it. A man wearing the same hat is also seen walking past the delivery man in the lobby of Widmore Industries. Watch the timing for when he walks past Desmond and then past the delivery man, the timing is way off

S3E10
• As young Hurley comes down the steps to his house, there is a boom box on the steps, moments later his father comes down the steps and the boom box is missing, even though it can still be heard
• The same man is seen passing behind young Hurley at two different times and even though the shot is from two different angles, the timing is off
• Just after Charlie has shaved, his beard growth is back when Kate and Sawyer return
• Sawyer's hair changes from being down on both sides of his face, to being tucked behind his left ear. to being down again when Kate takes removes the dart. The same thing happens in this scene with Kate's hair being tucked/un-tucked behind her right ear
• In the scene where Hurley is sitting at the table with his parents, his father is holding his glass, in the next shot he has a piece of the burger in his hand and in the next, the glass is back in his hand
• The skeleton's arm in Vincent's mouth constantly changes position as Hurley is chasing Vincent. And it also changes position from when Vincent finally drops it, to when Hurley takes the key and rabbit's foot. Also watch the position of the key in relation to the rabbit's foot. This is discussed by Jorge Garcia (Hurley) in the March 5, 2007 podcast
• Carmen Reyes puts her thumb and index finger over the ears of the gold Jesus statue, in the next shot, the position of her hand over the ears has changed
• There is a vase of flowers on a table in the living room as Hugo and his mother are speaking. When his father enters the room, the flowers are missing

• Look carefully at the contents of the refrigerator, they change several times. The first screen cap is when Locke opens it, the second is when Ben/Fake Henry opens it, and then a few seconds later we see the inside of the refrigerator from Jack's point of view. Each time the contents have changed
• The bananas on the counter change position in relation to the other items on the counter
• Look at the items next to the clock on the shelf. First there is what appears to be an urn shaped object next to it, then there is a ball shaped object
• The time on the clock also changes within a matter of seconds when Alex comes through the door
• The positions of the bars on the foosball table change from one shot to another
• The position of the books and the lamp on the dresser change positions
• A Other man in a light blue shirt is seen walking in the background in the same direction twice
• The detective's hair changes from one shot to the next
• There is a hinge visible when Kate begins to opens the door, it is missing when she closes the door
• The picture behind Ben/Fake Henry changes position in relation to the lamp

S3E21
• After watching Charlie's guitar for three seasons, I have still been unable to find any differences with either it, or the guitar case. However, in S3E21 there were many differences seen with the props associated with Charlie. The most notable of these can be found in Charlie's list of his "Greatest Hits". We see Charlie's list on five different occasions as he starts with #5 and then adds #4, #3, #2 and finally #1 to the list. But if you compare the list as it is seen each time he adds something to it, there are big differences in the list. Look at the list when he is adding #4, the words "First Time" are separated, they were connected in #5. When he adds #3 to the list, the position of the word "Butlin's" has changed position in relation to the word "radio"; and the words "First Time" are now connected again. There are also big differences in the presence of absence of the periods after each entry on his list. And there are distinct differences between when he adds #2 and #1. The placement of the words "Hero" and "Covent" are different in relation to each other
• Charlie is seen placing the Drive Shaft ring on his middle finger when Liam gives it to him and Charlie announces "It fits". Yet, when Charlie is seen wearing the ring on the street corner near Covent Garden he is wearing the ring on his fore finger
• The length of Charlie's necklace also changes constantly throughout S3E21. It some scenes it hangs down over the neckline of his t-shirt and in other scenes, it is much shorter
• A member of Drive Shaft who is sitting in the van is wearing sunglasses and they suddenly disappear in the next shot
• The time is seen on Charlie's watch as he hugs Hurley and it is then shown later on in the boat, the time is the same
• In S1E5 Charlie begs Jack to go get Joanna when he says "Jack! Jack! Jack! Hey Jack! Someone's out there. You've gotta... the currents.. there's someone out there, look. I woke up and she's... I don't swim. I don't swim" , but in S3E21 Charlie says "I was junior swim champion in Northern England" and then swims down to the Looking Glass
• Vincent appears to have a new leash, it has been blue in some episodes and red in other episodes. In S3E21 Hurley is seen with Vincent on a leash that is made from what appears to be chain
• The position of Charlie's hand across the girl's arm changes

S4E1
• The blood stains on the right shoulder of Ben's shirt change from when he is tied to the tree to later on when he is being led around by Jack and Danielle
• The sweat and dirt stains on Kate's shirt change throughout the episode
• The same shots of Hurley passing a white car and then a black car are shown several times while Jack is watching the chase on the TV
• Just before Naomi jumps down from the tree, the flashlight is in Kate's right hand, after Naomi jumps down, Kate is holding the phone in her right hand
• There is a woman extra who repeatedly walks past the window behind Jack in the basketball scene
• There are bystanders that appear and disappear during Hurley's chase and arrest
• There is a woman sitting at a table on the lawn at Santa Rosa, she is not at the table when the long shot of the scene is shown
• The curtains near the TV in Jack's living room change as Jack is watching the car chase
• When Jack and Hurley are finished playing horse, someone's head appears and disappears very quickly above the back board

S4E2
• The pictures on the wall in Mrs. Gardner's house change frames and positions from when we first see them before Miles goes upstairs to when he comes downstairs
• The monitor in the picture of Ben doesn't have any cables connected to it
• The items taped to the wall behind the grandson's desk change positions and heights
• The people standing behind Locke change positions just before Ben shoots Charlotte. Watch Claire, the woman in the grey head scarf and the guy with the glasses. The woman in the grey head scarf also changes positions as Sawyer questions Ben
• When Frank Lapidus first sits up there is grass stuck to his head injury, in the next view of him the grass is gone
• Frank is shown grabbing a tree limb as he climbs up the hill. In the next shot, he hasn't reached the limb yet
• The position of the bell and the other items on the desk change. First the bell is on the left, then it is on the right
• Naomi is facing left when we see her on the stretcher, then she is facing right
• The rear blade on the helicopter moves between the first time we see it and then in close up

S4E3
• Mr. Avellino does not have any sweat stains on his shirt when he reaches for his club, then sweat stains appear suddenly
• Mr. Avellino, the man Sayid shot, is right handed but he is wearing his watch on his right arm
• The golf club changes positions and is against Mr. Avellino's leg after he is shot
• There are many grammatical errors on the German menu that Sayid passes on the way into "Dia Moaur"
• There are no yellow lines on sidewalk curbs in Germany
• The street sign of the figure of a man walking is not the figure that is actually on Germany's street signs
• An authentic Brazilian passport would read "Brasil" and "Passaporte," rather than the English "Brazil" and "Passport"
• There is no scar on Sayid's left arm (where Patchy shot him) when he is in the bedroom with Elsa or when Ben treats his new gunshot wound
• The dog cages are closer together when Sayid leans against the door jamb than they were when he first passes by the cages
• Sayid, Kate and Miles walk past the same wash hanging on the line twice
• Naomi's eyes are closed when we first see her on the stretcher as Sayid approaches, but then they are open when Sayid is beside her.
• Two views are shown of Kate and Dan as he walks beside her, she turns her head to the right and then walks away. It repeats when shown in close up of them.
• During the golf scene the time changes on Sayid's watch and the angle of the sun changes during this scene
• Jack and Juliet walk paste Naomi's dead body twice
• The bed railing on the right side of Ben's bed is down, then it is up during the scenes with Kate and Sawyer in the room. The curtains near the bed stand also change positions.
• The African masks on Ben's bedroom wall are different than the masks that were on the wall in Season 3
• Elsa's hand moves between shots in the bedroom scene from being behind Sayid's neck, then it's not there, then it's back again, then it's missing again

S4E7
• The picture of Ben's mother has changed from a younger woman with hair down over her left shoulder, to the version of the picture seen in S4E7 where she is an older woman with no hair over her left shoulder
• Jin has no accent when he approaches Kate and Sun and says "What happened?"
• The word STOP is clearly written in English and has typical US lines on the street that is supposed to be in Korea
• The stuffed panda changes positions in the back seat of the taxi
• There is no panda behind the toy store clerk when Jin first approaches him, minutes later there is a panda
• In Jin's flashback, he pulls South Korean won bills that recently came into circulation out of his wallet. The 10,000 won bills he pulls out were released on January 22, 2007
• The first scene of Jin in the toy store shows items on the back shelf from the shows Ben 10 and Power Rangers: Operation Overdrive. These shows did not begin airing until 2007. Another shelf carries Nintendo DS and PSP consoles, which were not available until late 2004
• The paper bag that Frank Lapidus is carrying changes several times before he delivers the lima beans to Desmond and Sayid
• Jin passes a US telephone booth that has been slightly altered to appear more Korean
• The English translation of the name on the bag that contains Sun's wedding ring is Kwon Sung Hieh, this is not Sun's name
• The doctor says that Sun needs a c-section and then she delivers without problems, also the doctor stops the nurse from taking Sun's wedding ring, but then we see Sun taking it from a bag
• The man in the Hawaiian shirt moves in relation to Jin as Jin is looking at the taxi drive away with the panda
• Several of the extras on the street pass by Jin more than once, watch the man in the grey and black striped shirt and the women
• Kate's position, as she speaks to Sun on the beach, changes from a crouched position to standing, to back down again during the same scene

S4E9
• Ben's bag is hanging over his left hip when he gets on the horse, the camera angle changes and the bag is suddenly hanging down over his right hip
• The barbeque is upright when Sawyer runs to it, in the very next frame the barbeque is turned on its side
• The version of Risk is the 2005 "Library Edition"
• The Arabic spellings used are incorrect and the letters are not connected to each other as they should be
• When Ben wakes up in the desert, the ground beneath him changes between shots
• The doorway that Ben goes through to his closet did not have a gap for the door that lowered when Sayid found it in S4E3
• As Ben walks into Charles Widmore's building, there are two guys walking down the street in jackets that were not released from Topman until early 2007
• When Alex is forced to enter the code for the fence-- there is a brief moment after the blindfold comes off and then it is back on.

S4E10
• The sweat marks on Jack's t-shirt get larger as Jack leaves his tent and approaches the group of LOSTies
• Jack has apparently started shaving his chest, which has had hair on it in the past
• Jack is supposed to have been back from the island for some time now, yet his hands are rough and blistered, like those of a LOSTie, not a surgeon which you would expect to be more manicured
• Forceps is spelled incorrectly (forcepts) on Juliet's list, and so is gauze (gause)
• The type of smoke detectors used in hospitals are hard-wired, they do not contain batteries
• Jacks' last name is spelled incorrectly on his lab coat but is spelled correctly on the name plate on his desk, on the door to his office and on the sign out in the lobby
• When Kate approaches Aaron he is holding the whale upright, it switches to being tail up as she picks him up and then it is right-side up again
• There are problems with the lighting in the scene where Jack proposes to Kate. Although they are facing each other, they are lit from different angles, so their faces have the light coming from opposite directions
• Jack's scar appears and then disappears during the scenes where he is wrapped in a towel

S4E13
• When Hurley takes Aaron from Kate onto the raft, the first shot shows him with a life jacket; in the next shot, he is not wearing a life jacket
• Richard Alpert is shown lowering the gun after shooting Keamy in the back. After a brief reaction shot from Sayid, Richard is again shown lowering the gun
• When Ben climbs down the ladder to the icy cavern and falls, the crowbar lands behind him. In the next shot, it is in front of him, slightly under his knee
• Jin has already run across the landing pad and then he is seen running across it again
• The parka that Ben is seen wearing when entering the icy cavern is different than the one he is wearing when he wakes up in the desert in S4E9. Look at the snaps on the collar of the parka in S4E13, they are not there in S4E9. Also the logo seen on the parka before he moves the wheel is this logo, the logo on the parka in the desert is this logo, it is reversed

S5E8
• Jin's beard, mustache and injuries change from one scene to the next. His facial hair is much heavier before the flash to 1974 than it is after the flash
• There are also noticeable changes to Sawyer's beard throughout the episode
• Rosie's hair changes between shots, and so does her hand
• Sawyer is wearing a white t-shirt when he answers the door but is wearing a green t-shirt when he puts on his jumpsuit
• The positions of the plates, cups change in relation to the picnic basket and wine bottle changes position inside of the basket
• The man who invented the eye chart seen in the Infirmary was not even born until 1970, making it impossible for the eye chart to be present in 1977
• There is a 1988 version of a Cyclone pinball game located in the rec room even though the year is supposed to be 1974. It also appears as if the second pinball machine that has been seen previously in S3E13, SE15 and S4E3 is no longer located next to the first one, but is in a corner opposite the piano. However since the markings on this pinball machine are not visible, there is no way of telling if it is the 1999 version of Revenge From Mars
• The little girl that Daniel presumes to be Charlotte exists in 1974, yet Ben previously mentioned that Charlotte was born in 1979. Thus, the girl cannot be Charlotte. However, in the 3/19/09 podcast TPTB said that the script of Confirmed Dead said that Charlotte was born in 1970. Rebecca Mader told them,"Hey, I'm not that old, it should say 1979." It wasn't caught in the editing room and was allowed to air. TPTB said they'll just have to live with it as an acceptable error. However, after Rebecca Mader protested on her MySpace page that this was untrue, TPTB then said in their 3/26/09 podcast that they apologized to her and that this error was their fault and had nothing to do with her
• The picnic table is in a slightly different location before the alarm goes off, than it is when it is seen after the alarm goes off

S5E10
• The camera watching the cell holding Sayid was a modern camera that did not exist in 1977
• The dead chicken is smaller than the chicken that Sayid had picked up
• There is what appears to be a piece of white clothing or paper on the floor that changes position in the scene where Sayid kills Ivan Andropov
• There are four mistakes regarding the car in Moscow. The license plate of the indicates a nonexistent region in Russia, 158, and the numbers on the plate are flat whereas actual ones in Russia are pressed out. There is no such place where a car could be parked and have that view of Red Square. And finally, Sayid walks past Ben's car, parked on the side of the road, and then enters the gate, where Ben's car is now parked behind Ben, who is standing outside it.
• There is an an Apple Lisa computer in the Security Center. This computer was not sold for another 6 years
• Kate's car door is open and then it is suddenly closed
• When Sayid looks at Hurley standing at the gate counter at the airport, the female ticketing agent is not Nalini as seen in "316"
• The food pyramid seen on the wall of the cafeteria was not created until 1992
• Young Ben's body changes position after he shot by Sayid, and then changes back to its former position again

S5E13
• The remote control near Mr. Vonner's body changes position several times
• The Apple Lisa computer seen on the security center was not sold for another 6 years
• At the pylons, the sweat on Kate's t-shirt disappears when she enters the van
• When Young Miles touches the door, his hand is very close to the door knob. In the next shot, his hand is much further away from the knob.
• Miles has a moustache and goatee, but he did not in 'Whatever happened, happened'. However, no days have passed since that episode
• During the initial conversation with Horace, Miles puts his walkie on the desk, where it stays for the duration of the conversation. When he's about to leave, the walkie is in his hand again
• As Hurley is loading the van one of the workers in the Motor Pool is seen twice carrying the tires in two different shots. He already passed Hurley when Hurley is opening the hatch, in the next shot he is just picking up the tires again
• Hurley and Miles close the hatchback of the van when Chang tells him to wait at the Orchid. In the next scene, it's open again
• TPTB acknowledged in one of the recent podcasts that the flip tops shown in this episode didn't exist in 1977
• As Roger talks to Jack in the school, Jack manages to wipe the far left board in the time it takes Roger to kick his bucket at the door (1, 2)
• On the way to the Swan Hatch construction site, the van passes by a backhoe which bears modern Case CE decals which did not exist in 1977
• In one shot, Elmer is seen behind Kate. In the next shot which faces the opposite direction, he is seen behind Roger
• The periodic table on the wall in the classroom contains elements that were not yet discovered in 1977
• The Dharma worker is seen picking up The Swan hatch door with ease, and stamping the numbers on it as Glenn reads them to him. Yet in "Exodus, Part 2" it takes both Jack and Locke using their full strength to move it slightly and it's described as a "foot thick steel door"
• The heavy-set extra who walks past Miles before the kidnapping passes the barbershop next door to the taco stand twice, the first time walking slowly, then walking more quickly

S5E14
• Several of the mistakes in this episode appear to simply be the results of integrating scenes from previous episodes into this episode, resulting in what appears to be nothing more than just continuity errors. This is especially true of Daniel's hair, the shelves in the Orchid Station and the timeline of events
• The shelves that Daniel picks up his helmet from mysteriously disappear when he bumps into Dr. Chang
• Daniel's hair is much shorter when he is watching the TV than it is when Charles Widmore enters the room
• The timeline is completely off from what was presented in S5E1. In S5E1, Dr. Pierre Change wakes up at 8:15 a.m., takes a shower, feeds the baby, is filming the orientation video for the Arrow when he called to the Orchid because of the sick worker. However, in this episode, it is clearly around 6:00 a.m. when Sawyer briefly questions Daniel about the reason for his return to the Island, and then Daniel is immediately taken to the Orchid where he sees Dr. Chang and the same sick worker
• Another version of the Dharma recruits group picture is shown. Once again, it is different from the versions seen in S5E9 and S5E12
• The napkin and other items on the table in the restaurant change positions
• There is a bicycle leaning against the wall of one of the Dharma houses when close up view are scene of Daniel talking to Young Charlotte who is on the swings. In the next view of this scene the camera is further away and the bicycle is missing
• Graduation ceremonies at Oxford University take place at the Sheldonian Theatre, however the building seen is the same that has been used many times before to represent Oxford and several churches. See Duplicates
• The orange oil filter seen in the Motor Pool during the shootout is an aftermarket Fram filter with SureGrip. In 1977, Fram filters were orange with black print and did not receive the additional SureGrip feature until the early 2000's

• In S2E8 Jason's last name is Elder and in S2E20 Jason's last name is McCormack.

• In S3E16 it seems as if Mr. Ford is calling Mrs. Ford by the name of "Brooke" when he is breaking down the door. In S3E19, Sawyer tells Anthony Cooper that his mother's name was Mary.

• Season 1 DVD Interview:

It seems that there are curious things going on with the Season 1 DVD regarding "The Genesis of LOST" segment, apparently when some fans view their DVD's they see the name Leee Pinker vs. Jeff Pinker. Mine said Leee Pinker.

No matter which name you see, Mr. Pinker states “The Island could be, in a way, a dramatic version of a video game.” and that “You could find the hatch, but it could take several weeks before you had the proper tools to open the hatch.”

While Jeff Pinkner (with two N's) is an executive producer for LOST, who the heck is Leee Pinker and why is his name spelled with three e's? And if your DVD reads Jeff Pinker, then why is his named spelled Pinker instead of the correct way, Pinkner?

Why would they put out not just one version with his named incorrectly spelled, but two versions with mistakes?

The incorrect and strange spelling of the name drove me crazy for almost a full year before I finally figured it out. The only possible explanation is that Leee Pinker is an anagram for LINE KEEPER. A little play on words, as the Executive Producer is the person whose role it is to focus on business matters such as budgets.

So did the TPTB hide a clue to the true nature of LOST on the Season 1 DVD in an obscure anagram associated with an interview? The reward for noticing it? If a viewer recognized that Pinkner's name was wrong, they might pay extra attention to what he had to say in the interview.

• The Season 2 DVD provided another curious mistake with names. Eddy Kitsis' name is sometimes listed as Eddy and at at other times it is listed as Edward. Curiously, at one point when he appears on screen with Adam Horowitz, their names have been switched. I believe that the names have been deliberately switched and are meant to be an indication of the changes in game roles that occur on the show. In addition, Adam and Eddy are two names that we often see as Duplicates on LOST.

• The lamps in the dining area and living room, the tables, the stereo & record collection, and the logo's shown on the wall in the Swan hatch are very different from S2E1 to S2E2. For pictures and a really good comparison see http://www.cs.iastate.edu/~andorfc/iowa_mural.html

TPTB have explained this away by saying that they built a second Swan hatch for use in Season 2 and it had some different props and that these changes were unintentional. But, I don't buy this explanation. There are just too many differences. I believe that each season is a different game level and that the differences from Season 1 to Season 2 could be explained by the different levels being played.