Sister Act has musical arrangements written by an American composer and lyricist who has received Oscar nominations.
Marc Shaiman ( born October 22 , 1959 ) is a Grammy , Emmy , Tony winning , and multi Oscar nominated American composer and lyricist for films , television , and theatre . Sister Act is a 1992 American musical comedy film directed by Emile Ardolino and written by Joseph Howard . 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 .