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
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
a film by Werner Boote ; produced by NGF ; written and directed by Werner Boote ; producers, Markus Glaser, Wolfgang Widerhofer, Nikolaus Geyrhalter, Michael Kitzberger
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
Public Square Films presents ; a France/Tomchin film ; in association with Ford Foundation/JustFilms, Impact Partners and Little Punk ; executive producer, Joy Tomchin, Dan Cogan ; produced by Howard Gertler, David France ; written by David France, T. Woody Richman, Tyler H. Walk ; directed by David France