Question: What film star of the 2016 American crime-drama film directed by Ewan McGregor was best known for his role in "Animal House?"
Facts:
Peter Riegert is best known for his role in Animal House
American Pastoral is a 2016 American crime-drama film
American Pastoral stars Peter Riegert
American Pastoral is directed by Ewan McGregor
Answer: Peter Riegert