Continuity mistake: At the very beginning of the movie, when Kim Basinger is in the bedroom and walking towards the mirror, the movements of her reflection do not match her movements. She stops moving and her reflection continues to move.
Factual error: The President goes to the G8 summit in Toronto at the end. The G8 is comprised of Canada, United States, Britain, France, Italy, Japan, Germany and Russia. In the room there are a number of non-G8 countries represented.
Trivia: Breckinridge tells Jill that Accords, Tauruses, Camrys and Explorers are the four most common registered cars in Washington, D.C. According to Clark Johnson in the audio commentary, this statement is actually true.
Trivia: When Abraham Lincoln originally established the Secret Service in 1865, their mandate did not include presidential protection. The day after Lincoln signed the legislation to establish the Service, he was shot by John Wilkes Booth.