a Marathon/France 2 coproduction with the participation of Le Centre National de la Cinematographie, Discovery Communications, Inc. and TSR ; a film written and directed by Jean Yves Collet ; produced by Olivier Bremond, Pascal Breton
a presentation of Science Museum of Minnesota, Science North and Discovery Place in cooperation with the Jane Goodall Institute with funding from Bank of America and National Science Foundation ; producer, David Lickley ; writer, Stephen Low ; director, David Lickley