Trivia: Director John Hughes wrote the script in two days, on July 4-5, 1982.
Trivia: John Hughes, the director, originally wanted John Cusak to play Judd Nelson's bad boy role. He finally gave in when he realized that John didn't look "tough enough".
Trivia: In the begining of the film they are showing shots of stuff around the school (with talking over top). One of the things it shows is a plaque with graduation photos. The student on this plaque with the phrase "Man of the Year" is the janitor, only a bit younger.
Trivia: The woman who plays Brian's mom in the movie is Anthony Michael Hall's mom in real life.
Trivia: In it's short theatrical run The Breakfast Club took in $46 million, thrusting it into the top 20 highest-grossing films of 1985.
Trivia: When the kids are all getting high, Michael Hall says, 'Chicks cannot hold the smoke, that's the way it is'. He says the same thing in Weird Science.
Trivia: Because of success people thought there would be a sequel, right? Wrong, director John Hughes refused to do another film for two reasons. One was because he and Judd Nelson had a terrible relationship, meaning they hated each other. Also because Molly Ringwald was trying to get out the role of the regular teen girl. Eventually she lost all ties with John Hughes when she started to pursue more adult roles.
Trivia: The original running time of "The Breakfast Club" was about two and a half hours. Thinking the film would not be a hit, Universal Pictures cut the running time down to 97 minutes. The studio then destroyed the negatives of the deleted scenes. Director John Hughes said in a "Premiere" magazine article that he has the only complete copy.
Trivia: Brian's dad is played by director John Hughes.
Trivia: During the filming, Anthony Michael Hall and Molly Ringwald were dating.
Trivia: When Andrew (Emilio Estevez) is telling his confession during the group therapy, that scene took three days to film.
Trivia: It's rarely ever seen during the movie, but Anthony Michael Hall is the tallest person of the cast. Since this does not suit Brian, Hall's height is often concealed by him sitting while the others stand or him sitting slumped when sitting next to someone.
Trivia: At the beginning, there is a nameplate on an office desk that says R. Hashimoto. Richard Hashimoto is the production supervisor.
Trivia: The character of John Bender, the resident 'criminal' of the gang, inspired Matt Groening to name his law breaking robot 'Bender' in Futurama. John Bender also tells the high school principal 'Eat my shorts' at one point, which became Bart Simpson's catchphrase.
Answer: Bender found the shoe in the gym, and decided to wear it. When the principal kicked the basketball, Bender jumped out of the shoe. He left with his boot, and was wearing it when he arrived at the library.