Revealing mistake: By the end of the movie, when Jamie Foxx is holding the dying Arabian cop, you can see that Jamie's neck injury looks extremely false.
Continuity mistake: When Jeremy Pivens interacts with the FBI investigators, after the 'wrong' suspected terrorists are killed, he starts to pick up an AK-47 leaning against the wall and its barrel is pointed 'up'. He is told not to and in the next shot is putting it back, but the barrel is now pointing 'down'. Not to mention the continuity flaw in the distance he appears to have moved in a millisecond.
Factual error: In the intro sequence of the movie where they show old clippings and all, the animation part depicting the sep,11 incident seems to be wrong. A plane is shown moving towards the south tower while the north tower stands clear of smoke. In the actual incident, the north tower took the first hit. The north tower in the animation can be identified by the antenna. (00:03:10)
Revealing mistake: Shortly after the agents inspect the rooftop, there is a shot of the convoy driving away from the skyline of the city. If you look on the road, you can see a left-turn lane marking, with an arrow pointing to the left and the word "ONLY." Unlikely to find that word painted on the road in Riyadh. This was one of many scenes filmed in the Phoenix area.
Continuity mistake: During the last fight, in chapter 18, Abu Hamza (the main terrorist) is shot and you can see the bloody bullet holes on his white tunic. 15 seconds later, his granddaughter goes to him but Hamza tunic is now intact, no more blood and bullet holes.
Continuity mistake: Jason Bateman is saved from beheading by Jennifer Garner. He tears off the duct tape that is around his neck. He then goes out into the hallway and tears the duct tape off for the second time.