Filmography
Forces of Nature2004 · Director
Amazing Journeys1999 · Director, Producer
Alaska: Spirit of the Wild1998 · Director, Producer
Africa: The Serengeti1994 · Director, Producer, Writer
Search for the Great Sharks1992 · Co-Producer
Ring of Fire1991 · Director, Writer, Producer
Seasons1987 · Executive Producer
Great Barrier Reef1981 · Writer, Director, Producer
The Eruption of Mount St. Helens!1980 · Director, Writer
Genesis: Four Billion Years in the Making1978 · Director
Probes in Space1975 · Director
Planet Ocean1974 · Director