directed & edited by Emre Sahin ; producer, Allison Hynes ; produced by Authentic Entertainment, Inc. in association with Thirty Four Productions, LLC for the History Channel
produced by Ian Duncan and Johnny Shipley ; written and directed by Ian Duncan ; produced by Windfall Films Ltd. for NOVA/WGBH Boston ; produced by WGBH
written, produced & directed by Jamie Lochhead ; a NOVA production by Windfall Films Ltd. (part of the Argonon Group) for WGBH Boston produced in association with the BBC
producers, Neil Bregman, Ric Randmaa ; writer/director, Bob Barrett ; produced by Sound Venture Productions, Maverick Media + Communications, ACME Pictures