Continuity mistake: When Sydney gets up from the table in the diner, he picks up his cigarettes and an envelope from between the two coffee cups. A couple of shots before, we saw a side view of the table and there was no envelope. (00:06:30)
Continuity mistake: As Sydney is watching the craps game, 2 threes are thrown, but 'seven' is called out. (00:43:15)
Continuity mistake: When we first see John's hostage, the pillow on the bed has bright red blood right to the edge. In the closeup, a few shots later, the blood is much pinker and there is less of it. (00:52:25)