A production of Thirteen/WNET New York and Florentine Films/Hott Productions, Inc. ; produced by Lawrence Hott and Diane Garey ; directed by Lawrence Hott ; written by Ken Chowder
a co-production of Thirteen for WNET.org and Mannes Productions, Inc. in association with ARTE/France, NDR, Australian Broadcasting Corporation with the participation of YLE ; Louise Rosen Ltd. ; a film by Elena Mannes ; executive producers, Elena Mannes, Margaret Smilow ; written and directed by Elena Mannes
Pontecorvo Productions and Thirteen Productions LLC in association with National Geographic Channel, Sky Vision and WNET ; produced and written by Joe Pontecorvo
a production of BBC Arena, Lo-Max Films Ltd., Wildwood Enterprises, and Thirteen Productions LLC for WNET ; directed by Bernard MacMahon ; story by Bernard MacMahon & Allison McGourty & Duke Erikson ; telescript by William Morgan ; produced by Allison McGourty, Bernard MacMahon, Duke Erikson ; producer, Bill Holderman ; producer, Adam Block