Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

William Dennis Weaver (June 4, 1924 February 24, 2006) was an American actor who was best known for his work in television and films. Weaver's two most notable roles were as Marshal Matt Dillon's trusty helper Chester Goode on the CBS western "Gunsmoke" and as Deputy Marshal Sam McCloud on the NBC police drama "McCloud". He appeared in the 1971 television film "Duel", the first film of director Steven Spielberg. He is also remembered for his role as the twitchy motel attendant in Orson Welles's film "Touch of Evil" (1958). Question: What was the 1971 television film directed by Steven Spielburg in which the winner of an Emmy Award for Best Supporting Actor (Continuing Character) in a Dramatic Series appeared? Answer: "Duel"
William Dennis Weaver June 4, 1924 February 24, 2006 was an American actor who was best known for his work in television and films.