Question: For which film, did the actor whose first credited screen role was in the film Mighty Joe Young, win an Academy Award ?
Sentence (from "Mighty Joe Young (1949 film)"): Mr. Joseph Young of Africa and The Great Joe Young) is a 1949 American black-and-white fantasy film from RKO Radio Pictures made by the same creative team responsible for "King Kong" (1933).
Relevant evidence: No