the National Film Board of Canada presents ; director, Magnus Isacsson ; narration writer, Michael Riordon ; producer, Dale Phillips ; a production of the National Film Board of Canada, North West Centre
Edward Burtynsky ; Mercury Films, Foundry Films present ; in co-production with the National Film Board of Canada, and in association with TVOntario ; director, Jennifer Baichwal ; produced by Nick de Pencier, Daniel Iron, Jennifer Baichwal