produced and directed by Patsy Northcutt, David Kennard ; written by Brian Thomas Swimme, Mary Evelyn Tucker ; Yale School of Forestry & Environmental Studies ; Northcutt Productions
a co-production Zenit Arti Audiovisive, Skofteland Film, ZDF ; in collaboration with ARTE ; in association with NRK, Norwegian Broadcasting Corporation ... [and others] ; written and directed by Enrico Cerasuolo ; produced by Massimo Arvat