The Belles of St. Trinian's

This 1954 comedy was inspired by the comic sketches of Ronald Searle (believe me, that might mean something if you were British). Alastair Sim (A Christmas Carol) gives it his all in a twofer role, playing the grand dame headmistress of St. Trinian's School for Young Ladies as well as her good-for-nothing brother, who teaches the juvenile delinquent students the ins-and-outs of horse racing. 91 minutes Unrated.