Factual error: When they spot the guy with the missile from the helicopter, the pilot says "we're being pinged", and Banning says "stingers." Stinger missiles are infra-red seeking, passively tracking the heat of a target, so there's no way to know if you're being tracked by one or not. As a highly-trained secret service agent, he'd know that.Jon Sandys
Factual error: When the President is getting out of his car, we see the thin doors, like any usual car. However, in reality, Cadillac One has thick doors that weigh as much a Boeing 757 door. Not to mention the vulnerability of the car used in the movie. There's a reason why the Cadillac One is nicknamed "the beast."