Also, that tense scene at the airport? Never happened. According to Mendez, the escape went off "without a hitch." In the movie, the CIA calls off the mission at the last minute and cancels the plane tickets, presumably because Affleck accidentally slipped into a Boston accent. In reality, Canada responsibly bought the plane tickets well ahead of time, and the group just walked through the airport and left with their fake storyboards and real '70s mustaches.
Apparently the fake movie was half sci-fi, half porno.
At a Toronto screening, Affleck got so much heat for the oversight that he went "Oh, right" and changed the movie's post-credits text to acknowledge Canada's contribution. Apparently he'd never noticed that the mission he was recreating was nicknamed "The Canadian Caper."