Trivia: When Derice is applying for loans at different banks, the wall behind each bank manager is always the same wall! The plants and decorations are different, but it's the identical wall.
Trivia: Just something interesting, Brendan Fraser makes a guest appearance in the beginning in Crawl's room during the Halloween party. He is the same character he played in Encino Man.
Trivia: The portable devo guns Mario & Luigi use to turn Koopa into slime are actually Super Scopes, (used in the Super Nintendo Game "Super Scope"). They're kind of the Super Nintendo version of the Nintendo Zapper from "Duck Hunt" for NES (Nintendo Entertainment System").
Trivia: The man playing Joel Glicker's father is Barry Sonnenfeld, the film's director.
Trivia: The courtroom judge is played by Trey Parker's dad.
Trivia: When they go into the police station, just before Robert Patrick walks out Sharon Stone walks out in her Basic Instinct outfit. Another nod to the "movie within a movie" concept.
Trivia: The Rolling Stone magazine that the headmaster finds in the library that reveals Mary Clarence's/Doloris' true self is one of the magazines seen in the credits on the first film.
Trivia: The moths that fly out of Billy's mouth after he cuts the thread are real, the actor held them in there for the effect.
Trivia: When Jennifer Aniston answers the phone and the Leprechaun's hand comes out, it's an homage to the scene from A Nightmare on Elm Street, when the main character was talking on the phone and it suddenly turned into Freddy's mouth and tounge.
Trivia: Paul McGann plays both Girard (the man out to revenge his sister's honor) and the Cardinal's Guard who is killed by D'Artagnan out by the city ruins.
Trivia: When Chance jumps out of the car, he bangs the youngest child's head on the door hard enough to make the camera pan off him pretty fast.
Trivia: Demolition Man contains several references to the novel "Brave New World" by Aldous Huxley. Sandra Bullock's character's name is Lenina Huxley, from Lenina Crowne, a main character in the book, and the author's name. Sylvester Stallone's character is also named for a character in Brave New World, John the Savage. Also during the fight in the museum, Wesley Snipes says "such a brave new world".