The movie is based on the Broadway musical of the same name. "Grease" opened on Broadway in 1972 and was revived in 1994 and 2007.Jeff Christensen/AP Photo Before "Grease" became a movie-musical ...

Before "Grease" became a movie-musical sensation in the late 1970s, it was a Tony-nominated Broadway musical that opened in February 1972. The show was later revived in 1994 and 2007. Additionally, in ...