Bullfrog Films presents ; A production of Earth Image Films for Nova ; WGBH Educational Foundation ; Producer, Christopher McLeod, Robert Lewis ; writer/director, Christopher McLeod ; for NOVA, senior producer, Kathleen Bernhardt
a Swynk production in coproduction with NOB Broadcasting Service Corporation ... [and others] ; series director, Peter Swanson ; series producer, Joost van Loon ; writers, Bob Field, Katherine Duetch Tatlock
a Swynk production in coproduction with NOB Broadcasting Service Corporation ; TVE S.A. ; NCRV ; CPTV Connecticut ; executive producers: John Wegenk and Peter Gersen ; series producer, Joost van Loon
[Presented by] Mongrel Media ; produced by Primitive Entertainment Inc. in co-production with the National Film Board of Canada ; produced in association with Big Picture Media Corporation ... [and others]
Bullfrog Films presents ; produced by Christopher McLeod, Robert Lewis ; written and directed by Christopher McLeod ; a production of Earth Image Films for Nova ; WGBH Educational Foundation
[a film by Josh Fox] ; an International WOW Company production [in association with HBO Documentary Films] ; written and directed by Josh Fox ; produced by Trish Adlesic ; producers, Josh Fox, Molly Gandour