Question: Who is the father of the director of film Blue Movie?
Sentence (from "Blue Movie"): Blue Movie", the first adult erotic film depicting explicit sex to receive wide theatrical release in the United States, is a seminal film in the Golden Age of Porn (1969–1984) and helped inaugurate the "porno chic" phenomenon in modern American culture, and later, in many other countries throughout the world.
Relevant evidence: No