Spencer's Mountain is a 1963 American family drama film written, directed, and produced by Delmer Daves from the 1961 novel of the same name by Earl Hamner Jr.[2] and starring Henry Fonda and Maureen O'Hara[3] The supporting cast features early appearances in their careers by James MacArthur, Veronica Cartwright, and Victor French, while longtime Hollywood actor Donald Crisp portrays "Grandpa", his final screen role, and Wally Cox, Virginia Gregg, Lillian Bronson, Whit Bissell and Dub Taylor also appear.
The movie, although set in Wyoming rather than the Blue Ridge Mountains of Virginia, is a forerunner (or early alternate version) of the television series The Waltons.