The Cast Show Off: This was one of the first movies to show off Snipes' martial arts skills. Much like Bruce Lee, he would have to slow down his moves so they would actually show up on camera.
Doing It for the Art: Nigel Hawthorne, inexperienced in cinema, took his role to prove that he had screen presence for the producers of The Madness of King George. Hawthorne wanted to reprise the stage role for the movie version. As it transpired this was unnecessary as Hawthorne was the producers' automatic choice for the lead.
Hey, It's That Guy!: Denis Leary is Edgar Friendly. He even keeps the rapid-fire bit from his "Asshole" song in his speeches.
Jack Black had a small part as one of the Scraps, appearing alongside Edgar Friendly.
Shout Out: This film features references to Aldous Huxley's novel, Brave New World: Lenina Huxley was named after Lenina Crowne (a major character in the novel) and Aldous Huxley, John Spartan is named after John the Savage (on a side note, Chief Earle and later Huxley, called Spartan a savage), and Simon said during the fight at the Museum (before firing his AcMag gun):
Simon Phoenix: It's a brave new world! Sorry you gotta go!