1973

… Story

1968		Cocoon … Writer
1968		Hang 'em High … Writer

1961		Claudelle Inglish … Screenplay
1961		Gold of the Seven Saints … Writer

1953

… Story

1952

… Story

1973

… Executive Producer

1972

… Producer

1968		Cocoon … Producer
1968		Hang 'em High … Producer

1961		Claudelle Inglish … Producer
1961		Gold of the Seven Saints … Producer

1953

as Joe Spurgeon (as Glen Roberts)