an Associated Producers Ltd. film ; produced in association with WGBH/Frontline, Channel 4, the Canadian Broadcasting Corporation, and Canal D ; produced by Ric Esther Bienstock, Felix Golubev, Simcha Jacobovici ; written & directed by Ric Esther Bienstock
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
A New Pictures production for Channel 4 and Masterpiece ; produced by Dan Winch ; directors, John Alexander, Jonathan Teplitzky, Paul Wilmshurst ; writers, Lisa McGee, Anna Symon ; created and written by Paul Rutman
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
Pioneer Productions for PBS ; in association with Channel 4 and Mentorn International ; senior producer/director, Susan Crook ; produced and directed by Jonathan Challis, John Coffey, Ian Lynch