10 Interesting Facts You Didn’t Know About Grease
Sandy’s Last Name Change
In the original production note’s, Sandy’s last name was originally Dumbrowski. The film’s creators decided to change it to Olsen to match Olivia’s Australian roots.
Henry Winkler was initially casted for the role of Danny. But since he was already playing The Fonz on ‘Happy Days’, Winkler opted out because he didn’t want to be typecast.