Continuity mistake: After discussing the torture of a prisoner, Hubbard begins to give a rousing speech to the General. Hub is shown walking forward into an open portion of the room, the walls a fair distance away. Then a quick cut shows him with his back nearly against the wall where he started, then the next shot of him has him back in the open area again, all with no time to make such location changes.
Continuity mistake: The van that drives through the streets of NYC has broken front turn signals and a chunk missing from the grille at our top/right when looking at the van's front. But when it crashes through the windows, none of this damage exists. Also, the dirty license plate becomes spotlessly clean.
Continuity mistake: Below the stadium, Devereaux, Hub and Elise discuss various forms of torture to use on their captive. When an officer states "It's extremely messy", he does so with a fairly relaxed expression. The camera angle changes instantly and he suddenly looks like a stiff, angry statue.
Continuity mistake: After convincing his partner to rejoin the investigation, Hub has a multi-page form of letter-size paper that has been folded so that the back/yellow page is on the outside. It's folded once, top-to-bottom, then again sideways (making it 1/4 letter size). He opens the second fold to write "Hit Army 11:00" on half of the inside paper. He shows it to his partner, then to Elise. Elise takes it, closes the second fold (which conceals Hub's note) and writes "Bathhouse 12:00" on the outside of the folded paper, then hands it back to Hub, who then opens it to read her note. But that's *his* note on the inside. Her note is in plain site on the outside.
Factual error: A computer screen is used to show that a matching record was found for the fingerprint of one of the terrorists. But the two prints shown are identical, meaning they are the same print, shown twice. In reality, a matching print would show the same patterns of skin texture, but the ink pattern, record quality, angle of the finger to the paper, would all vary. You can't make the exact same finger print twice. It's similar to you signature - it's always extremely similar, but never precisely the same.
Continuity mistake: When Hub is talking on his cellphone to the terrorists on the bus, he holds the phone with two fingers wrapping laterally around the back of the phone (near the mouth-end), his finger tips pointing toward his upper cheek. When the angle instantly changes to show him more from behind, his two fingers are pointing up along the backside of the phone (fingertips pointing at his own ear).