Page "The Breakfast Club" Paragraph 19

Some of the posters on the walls during filming of The Breakfast Club were still there when Ferris Bueller was filmed.

On the Ferris Bueller's Day Off DVD commentary ( featured on the 2004 DVD version ), John Hughes reveals that he shot the two films back to back to save time and money, and some outtakes of both films feature elements of the film crews working on the other film in each case.