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 is #83 on Bravo's The 100 Funniest Movies list.
The film was followed by a 1993 sequel, Sister Act 2: Back in the Habit. It also inspired a musical stage version that premiered at the Pasadena Playhouse in Pasadena, California in 2006, and is due to open at the London Palladium with previews from 7 May 2009. "Oh Happy Day" is a 1967 gospel music arrangement of an 18th century hymn. Recorded by the Edwin Hawkins Singers, it became an international hit in 1969, reaching US #4 and UK #2 on the pop charts. It has since become a gospel music standard. The song has appeared in many movies, but most notably Whoopi Goldberg's Sister Act 2, with then-15 year old Ryan Toby singing lead. The song also appears in Big.