Sister Act (musical) Sister Act (musical) Sister Act is a musical based on the hit 1992 film of the same name with music by Alan Menken, lyrics by Glenn Slater, book by Bill and Cheri Steinkellner, and additional book material by Douglas Carter Beane. After having a regional premiere in 2006 in Pasadena, California, the original West End production opened on June 2, 2009 at the London Palladium, starring Patina Miller and produced by Stage Entertainment and Whoopi Goldberg. Subsequent productions have been seen on Broadway and in many countries around the world. In Philadelphia, Mother Superior declares that the convent is in
Sister Act of "Sister Act" is in the works. In the film's prologue, Deloris Wilson is a young student at a Catholic school; she seems more focused on music groups and being the class clown than her studies. As an adult, she is a lounge singer at a nightclub in Reno, Nevada, performing under the name Deloris Van Cartier. One night, she witnesses her mobster boyfriend Vince LaRocca execute his chauffeur as a rat. Lieutenant Eddie Souther persuades her to go into a witness protection program with Saint Katherine's Parish, a convent in a run-down San Francisco neighborhood, as her safe house.