Continuity mistake: When Jack speaks to Michael and Jin, as they build the raft, and then when he walks up the beach and inquires about Sawyer's trouble with his head, the backpack that Jack carries on his back is nylon, black/green with white trim. Yet, when Sawyer asks, "Sensitivity to light, that bad?" the backpack is suddenly transformed into a solid black leather, of an entirely different style. Then, in following shots it jumps back and forth.
Continuity mistake: When Kate finds the pilot's wingpin in the mud, the pilot's reflection is seen in the water as he lies on the branches above Kate. When Jack approaches they all look up and in the overhead shot the pilot's position differs and he lies on different parts of the branches, note their shape.
Visible crew/equipment: While Jin is cuffed to the wreckage, Sun points to her wrist and explains in Korean, but Sayid shouts, "The cuffs stay on!" At the start of the next shot, a crewmember's arm is seen holding the reflector screen to Sawyer's left, as he makes a sarcastic comment.
Visible crew/equipment: As Jack, Michael, and Charlie walk up to Hurley, the camera goes to the left of Hurley and you can see a road to the right of him and directly behind him a fence. If you look closely you can see a car parked under one of the trees. This can be seen in both the T.V. and DVD versions.
Continuity mistake: When Jack removes the paper with Kate's mugshot 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.
Continuity mistake: When Kate leans over the unconscious marshal he wakes and chokes her, and when 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.
Continuity mistake: On the beach, when Shannon questions Boone about his and Locke's whereabouts everyday, Boone wears a sleeveless tee shirt with large Asian characters on the front. Then, when Boone kneels beside Shannon the entire design actually disappears.
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.
Revealing mistake: When Kate is with Ray in his pickup, he wears his wedding band on his left hand, and his right arm is prosthetic. After the wreck, when Kate pulls him from the cab and onto the grass, he wears his ring on his right hand, the door and Kate's bracelet are also on the wrong side - obviously a flipped shot.
Visible crew/equipment: When Charlie and his brother are arguing backstage, as his brother rushes out shouting "P*ss off," you can see a crew member move in the mirror on the left and the right side. If you watch closely you can see the producers tried blurring the mirrors, but still they weren't able to remove the crew member.