Continuity mistake: In the scene where the police car is chasing Ben Affleck and Uma Thurman on a bike down in a tunnel, in one shot, the police car's flashing light on top is ripped off by the low ceiling. In the very next shot, the lights are still on the top. The next shot shows the lights are gone.
Revealing mistake: In one of the shots of a newspaper you see a serious grammatical error for a headline. The use of "it's" instead of "its". It was something to the effect of "Ahead of it's Time". Forgivable for a note left by a character, but a mistake that real newspapers just don't make. Just FYI: The actual headline is "Nexim Announces It's Answer to ARC's Living Display".