Continuity mistake: When Rachel McAdams is interviewing Joe in the coffee shop, she starts off with a couple of lines written on her notepad, then half a page, then back to a few lines, then a full page, etc. It changes in almost every shot. (00:38:40)
Continuity mistake: Right at the beginning of the movie, the Sergeant pulls his jeep over and headbutts a prisoner who is carrying a Danish flag, seizing it. In the following shot he has his arms open and shoves away another prisoner, no flag in his hands. Next shot, he's standing by the bleeding prisoner, folded flag in hand. (00:02:25)