Question: When did the director of film Dragonwyck (Film) die?
Sentence (from "Dragonwyck (film)"): It was directed by Joseph L. Mankiewicz, and produced by Darryl F. Zanuck and Ernst Lubitsch (uncredited), from a screenplay by Mankiewicz, based on the novel "Dragonwyck" by Anya Seton.
Relevant evidence: Yes