Visible crew/equipment: When Ferris, Sloan, and Cameron pick up the Ferrari at the parking garage you can see the camera and its reflection in the window directly behind Ferris and Cameron.
Ferris Bueller's Day Off (1986)
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Directed by: John Hughes
Starring: Matthew Broderick, Jeffrey Jones, Mia Sara, Alan Ruck, Jennifer Grey
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Ferris: Pardon my French, but Cameron is so tight that if you stuck a lump of coal up his ass, in two weeks you'd have a diamond.
Trivia: Throughout the movie, many different characters either sing or hum the song "Danke Schoen". Ferris sings it in the shower, Mr. Rooney hums it while he is waiting at Bueller's front door, Jeanie sings it while running down the stairs after kissing Charlie Sheen, and Ferris sings it again during the parade.
More questions & answers from Ferris Bueller's Day Off
Answer: Sloane knew it was a hoax. Ferris would not have done something like that without her knowing. Rooney pretty much had figured it out, but could never prove anything. Once he was discovered inside the Bueller house (illegally) by Ferris' sister, anything he did know he would have to keep to himself.
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Sloane starts to put her jacket on the moment that she sees the school nurse walk into the classroom, suggesting that Sloane already knew she would be called out, and she smiles to her classmates.