National Geographic Documentary Films presents ; a RadicalMedia production in partnership with Bloomberg Philanthropies ; directed by Sidney Beaumont, Michael Bonfiglio ; produced by Sidney Beaumont
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
a Dislexic Films production ; a Media Education Foundation release ; executive producer, Randall Wallace ; directed by Adolfo Doring ; produced by Amanda Zackem