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
written and directed by Andreas Ewels, Norbert Porta ; production ZDF, Alexandre Kegler, Sigrid Beck ; produced by Norbert Porta Sciencedocu on behalf of ZDF