Question:  She's Working Her Way Through College is a 1952 American comedy film based loosely on a film that starred a retired American actress who appeared in how many feature films?
Sentence (from "She's Working Her Way Through College"): She's Working Her Way Through College is a 1952 American comedy film produced by Warner Bros. A musical comedy in Technicolor, it was directed by H. Bruce Humberstone, and starred Virginia Mayo and Ronald Reagan.
Relevant evidence: Yes