a Nova production by Lion Television, All 3 Media, Medialab for WGBH/Boston in association with Channel 4 and Arte France ; produced and directed by Ian Bremner ; produced by Su-Mae Khoo
produced by Furnace Limited for Thirteen in association with WNET.ORG, Channel 4, National Geographic Channel UK, ABC Australia, and ZDF ; written and directed by Richard Bond
produced by Darlow Smithson Productions for PBS and Channel 4 ; in association with Endemol Worldwide Distribution ; written by Stephen Hawking, Stephen Finnigan, Ben Bowie ; directed, filmed & produced by Stephen Finnigan
produced and directed by Edward Watts ; producer, Evan Williams ; an ITN Productions-Ronachan Films co-production with Evan Williams Productions and Mediadante for WGBH/Frontline in association with Channel 4
produced by Mais Al-Bayaa, Ramita Navai, Patrick Wells ; directed by Patrick Wells ; a Quicksilver Media production for WGBH/Frontline in association with Channel 4