Continuity mistake: Towards the end of the movie, Frost comes out to tell everyone that Roman has been killed. We hear over the 2 way radio Sabian saying "Let's get you some help." Just before he says that, you can see in the background behind Frost that Sabian is already helping Roman out the door. Seconds later Sabian starts helping Roman out the door.
Continuity mistake: In the lobby of police headquarters, Danny Roman's lawyer tells him to make a deal with the prosecution. Danny turns to his wife Karen and tells her to wait in the car and he will be right back. Then he proceeds to go upstairs and overtake Niebaum's office. Much later when Chris Sabian is negotiating, Karen arrives on the scene wondering what's going on. How long was she waiting in the car?
Continuity mistake: In the final scene Sabian (Kevin Spacey) gives the bogus discs to Frost who crumbles them up. After Frost is shot outside, Sabian is helping Danny Roman (Samuel L. Jackson) out of the house, he is holding the discs in his hand. Since they couldn't find the real discs and the computer was destroyed what were these discs he was now holding?
Continuity mistake: In the scene where Samuel L. Jackson is walking by the stairwell to get J.T. Walsh, the SWAT team member is not handcuffed to the stairwell, and in fact is not seen in the room. A few seconds later, as Samuel L. Jackson is attempting to push him into the other room, the SWAT member is shown handcuffed to the stairwell.