by Paul Devlin ; directed, edited, and produced by Paul Devlin ; produced by Claire Missanelli ; a Paul Devlin production in association with BBC, YLE/FST Finland, Discovery Channel Canada, SVT/Sweden
Arte France, Grand Angle Productions ; directors, Emmanuelle Sapin, Pascal Goblot, written by Emmanuelle Sapin, Pascal Goblot, Guillaume Pérès ; produced by Guillaume Pérès
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
a presentation of the Howard Hughes Medical Institute ; produced by Sutherland Media Productions, Inc ; producer, Dennis WC. Liu, Ann DeStefano Sutherland ; director, Wally Ashby