produced by 90th Parallel Film & Television Productions Ltd. ; produced in association with ARTE France, Unitâe Dâecouverte et Connaissance ; produced in association with Canadian Broadcasting Corporation ; produced and directed by Mike Sheerin ; writers, Norman Doidge, Mike Sheerin
A production of Clearwater Documentary Inc. ; produced in association with Canadian Broadcasting Corporation ; The Nature of Things ; Directed and written by Tom Radford, Niobe Thompson ; produced by Niobe Thompson