Corrected entry: In his first conversation with VP Bennett, Ivan says that he now controls Air Force One. But since "Air Force One" is a call sign and not a specific plane, it only applies when the president is on board, which, at this point, isn't technically the case, because he and his men (and by extension, we the audience) all assume that Marshall fled in the plane's escape pod.
Continuity mistake: In the scene where the President is being escorted to the escape pod, there is an extra shot where the President is hiding on his own around the corner from a terrorist, who is sneaking around in the background looking for him. In both the preceding and following shots, the President is being physically escorted by two Secret Service men who are pulling him along and forcefully holding his head down. This shot is wrongly inserted into this portion of the scene and needs to be later in the film, when the President is trying to escape. (00:23:40)
Suggested correction: This mistake does not occur in the film.
It is a fragment of the scene when the man is checking downstairs when the whole plane is to be re-checked.
Factual error: The passenger door at the front of a 747 opens outwards and towards the front of the plane (as seen when President Marshall boards the plane). When the first family is being evacuated at the end of the movie, the door is nowhere to be seen.
Suggested correction: That's because Gibbs had blown the emergency lock on the door and it went flying. Now, whether they'd actually do that and risk the door flying through the engine is another story, but I doubt the engineers had a mid-air rescue in mind when they designed it.
Correction: It may technically not be an accurate term given the situation, but they are not professional US military and it would be reasonable that the plane the president flies on would still be referred to as Air Force One even if the president was (believed) no longer on board instead of switching to calling it SAM 28000 or 29000 (depending on which was in use). It would be like seeing the plane on the tarmac at Andrews and saying "that's Air Force One" even though the president isn't on board.
jimba