an Invision Productions Limited production in association with Heights Productions, Inc. and WGBH Boston, with the assistance of Lion Television Limited ; produced and directed by William Cran ; written by William Cran, Daniel Yergin ; executive producer, Michael Sullivan
Columbia Pictures presents ; a Martin Ransohoff production ; a Ralph Bakshi film ; written by Ronni Kern ; produced by Ralph Bakshi and Martin Ransohoff ; directed by Ralph Bakshi