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
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