director, Anne Henderson ; writer, Gwynne Dyer ; producers, Marrin Canell, Catherine Mullins ; 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
directed and written by Mike Downie ; produced by Tina Verma ; produced by Canadian Broadcasting Corporation, in association with National Geographic Channel, and with the participation of Discovery Science