director, Werner Volkmer ; writer, Gwynne Dyer ; produced by Green Lion Productions, Inc. in association with the Canadian Broadcasting Corporation, with the participation of Telefilm Canada and Société générale des industries culturelles (SOGIC) [and] National Film Board of Canada ; producers, Catherine Mullins, Marrin Canell
a Light Night Production in coproduction with Télévision Suisse Romande TSR and the participation of Fonds Culturel, Suissimage ; with the financial support of Office fédéral de la culture ... [and others] ; directed and produced by Patricia Plattner
Storyline Entertainment and The National Film Board of Canada present ; director, Michael Kot ; producers, Ed Barreveld, Michael Kot ; narration writer, Shelley Saywell ; produced by Storyline Entertainment, Inc. in co-production with The National Film Board of Canada, Ontario Centre ; in association with Canadian Broadcasting Corporation['s] The Nature of things, National Geographic Channel International
an Affinity Film production ; in association with British Columbia's Knowledge Network ; directed by Madeleine Grant ; produced by Jessica Cheung & Madeleine Grant ; writer, Madeleine Grant
Bullfrog Films presents ; with Gwynne Dyer ; director, Werner Volkmer ; writer, Gwynne Dyer ; produced by Green Lion Productions, Inc. in association with the Canadian Broadcasting Corporation, with the participation of Telefilm Canada and Société générale des industries culturelles (SOGIC) [and] National Film Board of Canada ; producers, Catherine Mullins, Marrin Canell