Filmography
National Geographic: Splendid Stones1991 · Writer, Producer
National Geographic: The Volga1977 · Director, Writer, Producer
The Incredible Machine1975 · Writer, Director
Birds Do It, Bees Do It1974 · Director
Hollywood: The Dream Factory1972 · Writer, Producer
The Wolf Men1969 · Producer, Writer, Director
Dear Mr. Gable1968 · Executive Producer
Grizzly!1967 · Writer, Director