Trivia: During the scene before the fight, where Rocky enters the ring and sees the 2 portraits of him and Apollo, the error on Rocky's shorts was an actual error made by the art crew, and Sylvester Stallone rewrote the scene when he saw this mistake.
Trivia: The film-makers only had three vintage US aircraft for the production, namely two F4F Wildcat fighters and a PBY Catalina search plane. All of the other aircraft that appear are from either wartime footage or from previous war movies.
Trivia: Some of the combat footage shown during the opening credits comes from John Huston's classic Civil War film, "The Red Badge of Courage" (1951). (00:08:22)
Trivia: The train crash at the end of the movie was filmed at Toronto's Union Station. While the layout of Union Station is irrelevant, it's interesting that the train's final position would have required it to cross the tracks at a 90° angle (more or less) and drop down onto the ramp that connects the Great Hall to the passenger departure area.
Trivia: The assault takes place on Precinct 9, Division 13. There is no "Precinct 13" in the film. At first John Carpenter wanted to call the film "The Anderson Alamo" (the original title of his screenplay), and at one point he changed the working title to "The Siege." CKK, the film's distributor, was responsible for the misnomer; it rejected Carpenter's titles and came up with the name "Assault on Precinct 13" (which it felt was more ominous sounding) during post-production.
Trivia: At the Iron Man's house, there is a painting of the Hindenburg airship disaster. Rene Auberjonois (Father Kudos) had previously starred in the 1975 movie The Hindenburg as Major Napier.
Trivia: Directorial debut of Burt Reynolds.
Trivia: In the film two hoods are called "Lalo" and "Buchinski". "Lalo" is a reference to Lalo Schifrin, composer of the other "Dirty Harry" movie soundtracks. "Buchinski" was the real last name of the actor Charles Bronson.