a WGBH Science Unit Production by Debonair Production Company in association with La Cinquiéme ; WGBH Educational Foundation ; produced and directed by David Espar, Diane Hendrix & Michael Rossiter
Oxford University, Victoria University of Wellington, The Science Documentary Project present ; a David Sington/Simon Lamb film ; a DOX production, co-produced by Catherine Fitzgerald ; directed by Simon Lamb & David Sington