Sister Act is a 1992 American comedy film released by Touchstone Pictures. Directed by Emile Ardolino, it features musical arrangements by Marc Shaiman and stars Whoopi Goldberg as a Reno lounge singer who has been put under protective custody in a San Francisco convent and has to pretend to be a nun when a mob boss puts her on his hit list. Also in the cast are Maggie Smith, Kathy Najimy, Wendy Makkena, Mary Wickes, and Harvey Keitel.
The film was followed by a 1993 sequel, Sister Act 2: Back in the Habit. It also inspired the musical Sister Act that premiered at the Pasadena Playhouse in Pasadena, California in 2006, and opened at the West End's London Palladium with previews from May 7, 2009. The musical then opened on Broadway at the Broadway Theatre in April 2011, with previews beginning March 24, 2011.