'Ferris Bueller's' 30th Anniversary! 10 Things You Never Knew About the Cult Classic

June 11 marks the 30th anniversary of “Ferris Bueller's Day Off”!

In honor of the milestone, we've collected 10 facts you probably never knew about the cult classic, courtesy of IMDb.

1. Matthew Broderick had competition for the role. Rob Lowe, John Cusack, Jim Carrey, Johnny Depp, Tom Cruise, Robert Downey Jr. and Michael J. Fox were all considered.

2. Molly Ringwald and Anthony Michael Hall, who starred in many of writer and director John Hughes' movies, didn't appear in this one. Mia Sara beat out Molly for the role of Sloane Peterson, because Hughes reportedly felt Mia had elegance. Meanwhile, Anthony turned down the role of Ferris' buddy Cameron (played by Alan Ruck), because he didn't want to be typecast.

2. Charlie Sheen deliberately stayed awake for more than 48 hours before shooting his scene as a drugged-out kid at the police station.

1. The Ferrari that Ferris, Cameron and Sloane go joyriding in wasn't an actual Ferrari! The car was too expensive, so the production made three replicas using an MG chassis and fiberglass body.

2. Ferris' alma mater, Shermer High School, is the same school featured in “Breakfast Club” and “Sixteen Candles.”

2. The actors playing Ferris' parents, Cindy Pickett and Lyman Ward, got married after the movie.

2. Matthew also had a love connection with a co-star… his on-screen sister Jennifer Grey. The two became engaged, but sadly their relationship ended after a fatal car crash in Ireland that left a mother and daughter in another vehicle dead.

1. John Hughes reportedly wrote the script in six days, due to the threat of a Writers Guild strike.

2. The “Twist and Shout” dance sequence was stolen from Michael Jackson's “Thriller” video.