written and narrated by Daniel Gordon ; associate producer, Nicholas Bonner ; produced and directed by Daniel Gordon ; VeryMuchSo Productions, Passion Pictures for BBC, Thirteen WNET, in association with Arte
producer, Rachel Hooper ; director, Teresa Griffiths ; Erica Starling Productions [and] Ronachan Films for BBC ; a co-production with ZDF in cooperation with ARTE
Ma.ja.de. Filmproduktion presents ; a film by Cordelia Dvorák ; producers, Heino Deckert, Daniel Saltzwedel ; in co-production with BBC, ZDF ; in association with ARTE, SRF, SVT