Question: Who starred in a 1956 American psychological horror-thriller film directed by Mervyn LeRoy and was first became known for her role as schoolteacher Rosemary Sydney?
Sentence (from "Waterloo Bridge (1940 film)"): The screenplay is by S. N. Behrman, Hans Rameau and George Froeschel, based on the Broadway drama by Robert E. Sherwood.
Relevant evidence: No