Answer the following question: Generate a question that has the following answer: Buck for the following movie plot: Phil Weston (Will Ferrell) has been unathletic his entire life. In college he failed at every sport that he tried out for. It looks like his 10-year old son, Sam (Dylan McLaughlin), is following in his footsteps. Sam is riding the bench on the best soccer team in the league, which just happens to be coached by Phil's father, Buck (Robert Duvall). Buck has been competitive his whole life and winning is everything to him. Buck trades Sam to the last place Tigers team. The coach of the Tigers quits, and Phil becomes the new coach, even though he has never coached in his life. Phil gets a neighbor, Mike Ditka of the Chicago Bears, to help him coach. Mike recruits two Italian soccer kids to the Tigers. The Tigers start winning, and they get to play in the championship game against Buck's team. Douglas Young (the-movie-guy)
Answer:
What is the name of Phil's father?