Continuity mistake: Right before they rob the police car, a Boeing 747 (four engines) is seen in shots of the plane coming into land. When the plane is shown from behind, it is a Boeing 767, with only two engines and fewer main landing gears.
Continuity mistake: In the climactic boat scene when Kevin Pollack runs back from the boat to the van full of money he shoots the man standing by the back of the van. Pollack is then shot in the back as he looks at the money in the back of the van. When Kevin Spacey returns to the van later in the boat scene, we see Pollack's dead body lying on the ground behind the van, however the dead body of the man who Pollack killed has disappeared.
Continuity mistake: In the scene after Keaton is released from prison, after the line up scene, he stands outside with his girlfriend and lights a cigarette which swaps from being lit to not being lit, and then it disappears entirely.
Continuity mistake: When Kobayashi first meets the Suspects, Fenster is laying on a sofa with his feet up on one of the armrests. Kobayashi says, "Mr. Fenster I recognize from his mug shots," and Fenster swings his feet down and sits upright. Thirty seconds later, Kobayashi says, "I work for Keyser Soze," and then Fenster swings his feet down from the armrest and sits up for a second time.
Continuity mistake: At the beginning of the movie, when Jack Baer is in the pier looking at the wreckage his cigar keeps changing size between shots.
Continuity mistake: When McManus and Keaton are clearing out the boat, the time of day outside (as shown by the daylight) changes from shot to shot. It should be dark during the entire scene.
Continuity mistake: When the suspects are put into a jail cell together after their interrogation, Keaton walks into the cell. He is wearing his suit jacket in the shot where he walks through the cell door, but in the next shot, where he walks to a bench to sit down, his jacket is now slung over his shoulders.
Continuity mistake: When the suspects are in the garage after Saul, Saul drops a gun and Keaton kicks it over to McManus. However in the next shot McManus picks up a different type of gun.
Continuity mistake: When we first see the Hungarian guy lying in the hospital he is burned over most of his face, however his eyebrow is still there. In a later scene, his eyebrow is gone but his eyelashes are still there.