In an early draft of the script Ferris had two additional younger siblings. Cameron's father's Ferrari wasn't a real Ferrari. Because it was too expensive to rent one, they made three fake ones with a fiberglass body. Grace the Secretary pretending to be Ed on the phone call was improvised. When the Ferrari crashed, the fiberglass hood ripped, but branches were put over the rip to make sure the camera didn't record it. A number of key moments in the movie were created in the editing ...[Read Story ]