Futureworld is a 1976 American science fiction thriller film directed by Richard T. Heffron and written by Mayo Simon and George Schenck. It is a sequel to the 1973 Michael Crichton film "Westworld", and is the second installment in the "Westworld" franchise. The film stars Peter Fonda, Blythe Danner, Arthur Hill, Stuart Margolin, John Ryan, and Yul Brynner, who makes an appearance in a dream sequence. No other cast member from the original film appears. "Westworld's" writer-director, Michael Crichton, and the original studio Metro-Goldwyn-Mayer, were not involved in this production.