2000Search for the Submarine I-52MovieWriter
1999Pursuit of the Giant BluefinMovieExecutive Producer
1998National Geographic's Storm of the CenturyMovieExecutive Producer
1998The Dragons of GalapagosMovieas Narrator (voice)
1997The Sonoran Desert: A Violent EdenMovieExecutive Producer
1997Volcano: Nature's InfernoMovieExecutive Producer
1996Puma: Lion of the AndesMovieExecutive Producer
1996Okavango: Africa's Wild OasisMovieExecutive Producer
1996Inside the White HouseMovieExecutive Producer
1995The New ChimpanzeesMovieExecutive Producer
199530 Years of National Geographic SpecialsMovieExecutive Producer
1995National Geographic - Arctic Kingdom: Life at the EdgeMovieExecutive Producer
1994Jewels of the Caribbean SeaMovieWriter · Executive Producer
1993National Geographic: Lost Kingdoms of the MayaMovieExecutive Producer
1986Secrets of the TitanicMovieWriter
1986Realm of the AlligatorMovieWriter
1983Natural WorldTV showWriter · 1 episodes
1979Etosha: Place of Dry WaterMovieWriter
1974Birds Do It, Bees Do ItMovieDirector · Writer