Continuity: At the airport, when Hurley rushes to make his flight the sweat stain on his t-shirt changes drastically between shots, so by the time he boards the plane - it goes from drenched to much less wet.

Factual error: Hurley arrives at the departure gate and calls to the woman to wait and let him board. As he goes through the gate, a sign with the word 'authorized' is visible to the left. This scene supposedly takes place in an Australian airport, but this is the American spelling - in Australia, the word is spelled 'authorised'.

Continuity: When Sayid and Charlie find Danielle and Aaron, the baby is wrapped in Danielle's sweater. The sweater jumps on and off Aaron's face, etc., depending on various camera angles.

Revealing: Locke is chased and grabbed by the "monster," and is subsequently pulled through the jungle on his stomach. Just after Jack jumps and grabs him, Terry O'Quinn's right pant leg comes up and his black shin pad is clearly visible, as he is being dragged.

Visible crew/equipment: As the "rescue" boat nears the raft with Jin, Sawyer, Michael and Walt, it has a spotlight shining on the four aboard the raft. That spotlight is the only light source in the area, yet the boat is bathed in bright light from behind, which also reflects in the boat's pole.

Continuity: In the first shot of Locke sitting in the wheelchair, in the airport lounge, he sits alone directly in front of the long rows of chairs. However, in the next overhead shot, the airline steward is at Locke's side as he sits near the large windows, nowhere near the chairs.

Continuity: When Michael sits with Walt at the airport, Michael says, "If you're worried about Vincent," and the newspaper in his hands is folded and held straight up with the blue Oceanic envelope. Yet, when he says, "Dogs fly in the luggage compartment all the time," the newspaper is sideways and there is no blue envelope.

Visible crew/equipment: After Sawyer is rescued and pulled onto the raft, scenery or a crew boat is visible in the top right hand corner as Michael stands up.

Continuity: At the airport, after Sun spills coffee on Jin, as he heads to the lavatory the large stain on his dress shirt is at the same height as the shirt pocket, yet, in the next shot the stain is much lower, below his stomach.

Revealing: After Sawyer jumps into the water to retrieve the rudder, Michael tosses him the rope then shouts, "Tie it around the rudder and we'll pull you in." Three shots later, in Sawyer's close-ups, mountains are visible at the right of the screen, whereas in the previous and following consecutive shots they are surrounded only by water at this point in time.

Deliberate "mistake": When Shannon carries and drags the luggage (some of Boone's) she breaks down and Sayid speaks to her. When he says, "It won't be too much if I carry it for you," he strokes her cheek with his left hand - note the watch. After he says, "I have a hike to lead," in the next wideshot he's still holding her face with his "left" hand. But, note the lack of watch, and her large suitcase is now backwards. They flipped the shot so his right hand would appear to be his left, to keep hand continuity, but it doesn't work.

Other: After Charlie receives a large gash on his forehead, from Danielle's trap, Sayid tries to seal it. When Sayid pours gunpowder in the cut, he leaves a large thick trail beside Charlie's eye and on his cheek, which he does not wipe away. There is a tight close-up of Sayid igniting the gunpowder with the flame. The gunpowder beside his eye and on his cheek should have seared his skin, but it does not. The only severe wound Charlie has later is the closed charred wound on his forehead, and though he does wipe his face back at the cave, the skin on his cheek and beside his eye are fine.

Continuity: When Charlie inadvertently releases Danielle's trap, he is hit by a downpour of falling rocks. The blood on his face, hands, etc., noticeably changes between shots.

Continuity: In the Oceanic Int'l departure lounge, Locke sits in his wheelchair near the large window, with the doomed plane in the distance. The attendant's desk is on the left, but the black lounge chairs, which are normally situated toward the center of the lounge, are gone in this shot; the chairs at the end of each row should be visible at this angle. These chairs are also seen when Hurley crashes the scooter into them.

Continuity: On the raft, when Michael walks over to Jin with the translation notebook, as Jin tinkers with the rudder, Jin's hand and handcuff change repeatedly in the following shots.

Continuity: In 'House of the Rising Sun' (01-06) Charlie tells Locke the man at Sydney Airport made him check his guitar. However, in this episode, we see Charlie squeezing his guitar into a luggage compartment onboard the plane.

Continuity: In the shot of Michael, just as the raft hits the log, the "ladder" and sail are directly behind him and Sawyer is gone, whereas in the previous and following shots Sawyer stands on the ladder, in that exact spot.

Plot hole: Sawyer pulls the bullet out with his bare hands, we are led to believe, through the cut the bullet made. When you are shot, the flesh immediately seals up, meaning you would need a knife or something like that to get it out. Sawyer only had the gun, as he could not have hidden the knife AND the gun.

Continuity: At the start we see Desmond in the hatch. When the explosion goes off he gears up and runs over to a machine where he turns the music off. The shot of the shelf is a flipped shot.

Plot hole: Seeing as Jin dived in right after Sawyer, to save him, when Sawyer came up Jin should have been right next to him, or at least in view. However Sawyer hears Jin's voice as if he is miles away when he surfaces, and he is not visible at all.