A production of the Educational Film Center and Christenson Associates ; writers, Louis Barbash, Patrick Prentice ; producer/director, Ira H. Klugerman
a production by Gruppe 5 Filmproduktion, Cologne commissioned by ZDF in cooperation with ARTE, ZDF-Enterprises, ORF, SBS ; script, Christian Feyerabend, Judith Voelker ; director, Christian Twente ; producer, Andrew McDonald
a Frontline co-production with the Palfreman Film Group ; WGBH Educational Foundation ; written by Jon Palfreman and T.R. Reid ; produced and directed by Jon Palfreman