Other mistake: At the end of the film, Dean can see himself in his TV. He looks up to the fire alerter, assuming the camera filming him is up there. The film camera then also pans up to the fire alerter, indicating the camera is there, too. For this angle, the picture in the TV is wrong, as it is taken from the point of view of the TV.
Suggested correction: Dean is only assuming the camera is in the smoke detector since that's one of the places he and Brill hid the other cameras. The shot of the smoke detector is just to show the audience what Dean is looking at, even though his guess is wrong.
Stupidity: When Will Smith and Gene Hackman are running through the railroad yard. Gene calls Will by his real name, "Will" and not by his character's name "Robert."
Suggested correction: You could be a little bit more specific, but I don't hear him say "Will" at any point during that run.
