Visible crew/equipment: In the end of this episode when Kate and Sawyer have just left the hatch they see a black horse. In the first shot with the horse, on the far right of the screen you can see the trainer's hand with a black glove. HD widescreen only.
Live Together, Die Alone, Part 2 - S2-E24
Continuity mistake: The woman from Desmond's photo is totally different the second time we see it, but Desmond and the background are exactly the same as before.
Continuity mistake: Hurley's lottery ticket changes from when it is first shown to when it is shown later.
Continuity mistake: In the film, the hair on Marvin Candle changes from the original film to the one that Mr. Eko found. It is much shorter on the recovered clip.
Continuity mistake: In this episode Jack works on an old crippled man to try and perform another "miracle." Remember, this is supposed to be in Jack's past. When he's looking at the x-rays in the beginning, take a look at the dates on them. They're November 16, 2005. In the last episode of season 2, Desmond says that the plane crashed in September 2004.
One of Them - S2-E14
Revealing mistake: When Sayid and Locke are talking to Henry Gale in the hatch, just as Jack comes in and finds them, the front part of the arrow supposedly piercing Gale's shoulder is at a different angle to the back part. This is visible in a number of shots.
Answer: He was eating a peice of an orange with the skin still on.
XIII