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 "Olivia de Havilland"): Dame Olivia Mary de Havilland, {'1': ", '2': ", '3': ", '4': "} ( ; born July 1, 1916) is a retired American actress.
Relevant evidence: Yes