written, produced and directed by Linda Garmon ; a Nova production by the WGBH/Boston Science Unit in association with BBC-TV, NDR International Hamburg and Nederlandse Omroepprogramma Stichting
a co-production of Mel Stuart Productions, Inc., P.O.V. American Documentary, Inc., and Thirteen/WNET ; directed and produced by Mel Stuart ; editor, cinematographer and co-producer, Alex Rotaru