Question: When was the director of film Marguerite & Julien born?
Sentence (from "Marguerite & Julien"): The film is based on a 1970s screenplay written by Jean Gruault for François Truffaut, which in turn is based on the true story of aristocratic siblings Marguerite and Julien de Ravalet who were executed in the 17th century on charges of incest and adultery.
Relevant evidence: No