an Invision Productions Limited production in association with Heights Productions, Inc. and WGBH Boston, with the assistance of Lion Television Limited ; series producer, William Cran
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
Overture Films and Paramount Vantage present ; in association with the Weinstein Company ; a Dog Eat Dog Films production ; produced by Anne Moore ; co-producers, Rod Birleson, John Hardesty ; written, produced and directed by Michael Moore
Bullfrog Films presents ; directed & produced by David Springbett ; writers, Heather MacAndrew, Des Kennedy ; produced in association with Vision TV ; produced in association with the Saskatchewan Communications Network ; produced by Asterisk Productions Ltd