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
Itinerant Media presents ; in association with Little Monster Films ; directed by Jimmy Chin, Elizabeth Chai Vasarhelyi ; produced by Elizabeth Chai Vasarhelyi, Jimmy Chin, Shannon Ethridge
Red Light Films presents, in association with HBO/Cinemax Documentary Films ; a film by Ross Kauffman & Zana Briski ; [directed by Ross Kauffman and Zana Briski]