BBC, the Fremantle Corporation co-production in association with Submarine Entertainment and Cactus 3 ; a film by Kenneth Bowser ; written and directed by Kenneth Bowser ; produced by Rachel Talbot [and] Kenneth Bowser
HBO Documentary Films and ThinkFilm present ; in association with Graceful Pictures and the BBC ; an Antidote Films production ; a film by Marina Zenovich ; directed by Marina Zenovich ; produced by Jeffrey Levy-Hinte, Lila Yaciub, Marina Zenovich ; written by Joe Bini, P.G. Morgan, Marina Zenovich