Question: What occupation did William Friedkin and Wang Quan'an share?
Sentence (from "William Friedkin"): William Friedkin (born August 29, 1935) is an American film director, producer and screenwriter best known for directing "The French Connection" in 1971 and "The Exorcist" in 1973; for the former, he won the Academy Award for Best Director.
Relevant evidence: Yes