a film directed by Roger Parent ; produced by Dominic Desjardins ; written and directed by Roger Parent ; produced by the National Film Board of Canada
the National Film Board of Canada presents ; director, Nick Bakyta ; narration written by Christine Alevizakis ; producers, Katherine Rankin, Jerry Krepakevich
the National Film Board of Canada presents ; director, Glynis Whiting ; narration written by Glynis Whiting ; producer, Jerry D. Krepakevich ; produced in association with The Nature of Things, Canadian Broadcasting Corporation
the National Film Board of Canada presents ; a National Film Board of Canada production ; director, Tom Radford ; narration written by Tom Radford ; producers, Jerry D. Krepakevich, Tom Radford
a film by David Dufresne ; a TOXA production in co-production with the National Film Board of Canada in association with ARTE France ; produced by Raphaëlle Huysmans, Louis-Richard Tremblay, Dominique Willieme