Sister Act has an all-male cast.
Featuring musical arrangements by Marc Shaiman , the film stars Whoopi Goldberg as a Reno lounge singer who has been put under protective custody in a San Francisco convent of Poor Clares and has to pretend to be a nun when a mob boss puts her on his hit list.
Caryn Elaine Johnson -LRB- born November 13 , 1955 -RRB- , known professionally as Whoopi Goldberg -LRB- -LSB- ˈwhʊpi -RSB- -RRB- , is an American actress , comedian , author and television host.
