Bluegate ; executive producer, Bonnie Boswell ; directed by Christine Khalafian, Taylor Hamilton ; written and produced by Bonnie Boswell, Christine Khalafian, Taylor Hamilton
American Experience Films presents ; written, produced & directed by Rob Rapley ; an Apograph Productions Inc. film for American Experience ; a production of WGBH
written, produced, & directed by Iain Riddick ; produced by Ruth Roberts ; produced by Darlow Smithson Productions Ltd, Shock of Mighty Productions and Handel Productions (EFS) Inc. in association with NOVA/WGBH Educational Foundation and Discovery Channel Canada ; WGBH