Continuity mistake: When Charlie is talking to Claire at the start and he says about there being a doctor at the caves, Claire has her hands on her baby bump. Camera changes and one hand is raised and the other is holding a bottle of water.(00:05:40)
Continuity mistake: When Sayid goes to climb the tree for the second antenna, Kate has got most of her rocket stick sticking out of the backpack. When she turns to leave, there is only a small amount sticking out.(00:22:40)
Continuity mistake: We see Drive Shaft preforming the song We All Everybody for the first time during a live performance. In this clip, Liam's microphone is constantly changing position without him touching it.(00:14:40)
Continuity mistake: When Sayid walks over to Michael, Michael has his suitcase open and a blue shirt and some white items visible in it. When Michael throws the shirt from his hands down behind him, the remaining white items have vanished.(00:26:20)
Continuity mistake: When Sayid opens the lid of the compass to show Jack, in the close-up, all of Sayid's fingernails are short and trimmed, yet, in previous and following shots (including next episode "Special") some of his fingernails (such as the thumbs) are very long again. This occurs in many other episodes, such as "Exodus 2".(00:24:40)
Continuity mistake: During Claire's second visit to the psychic, her hair changes position between shots. In one shot, it's hanging loose and in the next, it's tucked behind her right ear.(00:27:10)
Revealing mistake: At the bank, when Kate shoots her accomplice in the leg, the small square indentation on the pants, around the bullet hole, where the stunt device is located, is rather obvious.(00:33:20)
Continuity mistake: When Jack shows Locke the suitcase full of guns, you can see a stick visible in Locke's right hand. However, when Jack asks if Locke knows how to use a gun, you can see that after the camera has panned around, Locke is now holding the gun with both hands, with the stick nowhere to be seen.(00:27:10)
Continuity mistake: When Sawyer is in bed with his girl, he puts his finger on her chin and says "What do you want right now?". When it cuts his hand is gone.(00:01:45)
Continuity mistake: When Locke is about to leave to go search for Claire and Charlie, Michael stops him to talk. Locke throws the backpack over his right shoulder, but in the next close-up it's swung over his left (not a flipped shot).(00:06:15)
Continuity mistake: After Sawyer admits to Kate that he doesn't have the inhalers, Sayid and he get into a tussle. In the first shot, the back of Sayid's white shirt is fairly clean as he is standing, but in the next wider shot the back is completely filthy - before he and Sawyer ever even hit the ground.(00:30:10)
Continuity mistake: Just after Sayid has woken Sawyer up by throwing water in his face, there is a shot of Sayid from behind the tree Sawyer is tied to, and you can see a bit of Sawyer's hair. However, it is hardly wet, if at all, and when the camera cuts back to Sawyer his hair is drenched again.(00:22:20)
Continuity mistake: When Kate and Sawyer begin their swim, Kate is not wearing a bracelet on either wrist, as she heads into the water. In a few following shots, including when Sawyer goes to "See what they got on em," Kate wears a bracelet on her right wrist, but when they head down to retrieve the case, the bracelet is gone as she pulls on the case. After Sawyer frees the case, in Kate's close-up the bracelet reappears, but now it's on her left wrist, yet when they reach the surface the bracelet's on her right wrist. Whew!(00:03:10)
Continuity mistake: After Boone ties the red shirt around the tree, he places a red shirt on his shoulder. The position and width of it changes between shots.(00:16:00)
Continuity mistake: When Locke throws the knife towards a tied up Boone, it lands at a 45º angle away from him. When Locke leaves, the knife is now upright at a perfect 90º angle.(00:15:00)
Revealing mistake: After Jack brings some survivors back to the cave, there is a shot of Hurley turning on his CD player to listen to Willie Nelson. In the next shot of Jack, as he fills bottles with water, his large tattoo is on his right upper arm, but normally it is on his left. The shot is flipped.(00:39:40)
Continuity mistake: When Boone is tied up, with the goo in his hair, Locke has only his backpack slung over his left shoulder, when he holds the sheath in his left hand as he raises his right arm to throw the knife. After a brief cut to shocked Boone, Locke is in mid-throw and suddenly his second bag is slung diagonally across his chest and shoulder.(00:14:55)
Continuity mistake: 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.(00:28:35)