writers/directors, Marion Gruner, Christopher Sumpton ; producers, Christopher Sumpton, Robin Benger, Marion Gruner ; produced in association with Arte France, Unité Découverte et Connaissance ; and in association with Canadian Broadcasting Corporation ; Cogent Benger Productions Inc
produced by the Harvard-Smithsonian Center for Astrophysics Science Media Group in association with the Harvard University Department of Physics ; Annenberg Media
a film by Werner Boote ; produced by NGF ; written and directed by Werner Boote ; producers, Markus Glaser, Wolfgang Widerhofer, Nikolaus Geyrhalter, Michael Kitzberger
Flaxmoor Productions in association with Panos Pictures, Spring Films, TV/E ; a film by Steve Bradshaw ; executive producer, Andre Singer ; producer, Jenny Richards ; director, Steve Bradshaw
Flaxmoor Productions in association with Panos Pictures, Spring Films, TV/E ; A film by Steve Bradshaw ; director, Steve Bradshaw ; producer, Jenny Richards
Discovery Films ; Image Entertainment ; ThinkFilm ; a film by Werner Herzog ; directed, written and narrated by Werner Herzog ; produced by Henry Kaiser ; executive producer, Erik Nelson ; produced by Creative Differences Productions, Inc. for the Discovery Channel