Mary Clarence? Like Clarence Williams III from The Mod Squad? When a worldly singer witnesses a mob crime, the police hide her as a nun in a traditional convent where she has trouble fitting in. Whoopi Goldberg is the sister act of the title, and boy does she have a great time with the characterisation. It's hardly pulling up any trees, and it holds few surprises, yet it's so warm and gentle with its humour it's near impossible to dislike. The laughs obviously come from Goldberg's street wise gal trying to adapt to life in a convent. The big message that unfolds, as she gets more at e...