Trivia: Philip Seymour Hoffman was the only actor who knew whether or not Father Flynn was actually guilty.
Trivia: Paul Mitchell actually died in 1989. As an inside joke, the man portraying him when he talks to the Zohan on the phone is his business partner John Paul Dejoria. Dejoria has been the face of the Paul Mitchell company since Paul Mitchell's death, which has caused many people to believe that Dejoria is Paul Mitchell.
Trivia: Continue watching after the credits for quite a lengthy extra.
Trivia: "Another Way to Die", performed by Jack White and Alicia Keys, is the first Bond theme that is a duet.
Trivia: When Mike Myers is in the car with Darren Roanoke he is flipping stations (Darren was listening to rap). Mike Myers wants to hear Indian music, Darren switches it back. Mike Myers puts on Bohemian Rhapsody for a brief moment and gives the camera a knowing look. Bohemian Rhapsody was a very popular part of the Mike Myers movie Wayne's World.
Trivia: At one point in the movie, when the Chief is talking to the President, the President says "nucular weapons" once or twice. Frustrated, the Chief says something to the effect of, "For the last time, it's nuclear." This is an obvious jab at President George W. Bush, who was notorious for invariably saying "nucular" instead of "nuclear" when giving speeches.
Trivia: There were several Secret Service consultants on this film to give realism to the action. However, they were unhappy with the final product as it seemed that the kidnappers were able to get to the President without all that much trouble, even if they did have an insider.
Trivia: On the strip mall sign in the scene where it shows Catherine pulling into work, there is a sign that says "Bobby Lee Duke's Lolly Pop Shop". Bobby Lee Duke was the coach of the Giants in "Facing the Giants" who enjoyed lolly pops.
Trivia: Will Smith has his own signature line, which is called 'Oh Hell no.' He says it at least once in almost all his movies, including this one.
Trivia: Right when the Spartans start to push the Persians off of the cliff, you can hear the Wilhelm scream.
Trivia: The janitor who sees Lou Landers stuffing the dead body in the cabinet is the director, Craig Mazin.
Trivia: The man that plays Blake Lively's father in the movie is her dad in real life, too.
Trivia: A subtle reference to this film's 3D format: In Max's box, Trevor finds a pocket stereoscope, which are funky looking glasses that create the illusion of a three-dimensional image from two-dimensional photographs. It was invented by Sir Charles Wheatstone in 1840.
Trivia: When Jerry and Rachel are in the Circuit City, there is a poster for Disturbia, a movie that starred Shia LaBeouf and was directed by D.J. Caruso, who directed this film.