a film by Ed Brown ; Macroscopic Media ; written, directed, and produced by Ed Brown ; executive producer, Peter Kindersley ; producers, Ed Brown, Susan Cann, Victoria Di Iorio, Martin Essig
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
Cinedigm ; Docurama Films ; HBO Original Programming ; HBO Documentary Films ; written and directed by Josh Fox ; an International WOW Company production ; created by Josh Fox, Matthew Sanchez ; produced by Trish Adlesic ; produced by Josh Fox, Deborah Wallace