Arte France, Beta Prod present a film by Alain Tixier ; in association with Off the Fence ; authors, Annette Gourdon, Alain Tixier ; director, Alain Tixier
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