produced by Trige, Inc. for the History Channel and A&E Television Network ; executive producers, Stephen Kroopnick, Stu Schreiberg ; producer, Jim Lindsay ; co-producer, Jonathan Jerald
produced and written by Gregory Henry ; directed by Peter Schnall, Gregory Henry, David Shadrack Smith ; series producer, Stephen Stept ; produced by Partisan Pictures for the History Channel
Moxie Firecracker Films and Trillion Entertainment ; for A&E Network ; produced by Liz Garbus, Rory Kennedy ; written and co-produced by Jack Youngelson ; directed by Liz Garbus
a Perpetual Motion Films production, a presentation of Non Fiction Films, Inc. in association with Arts & Entertainment Networks ; produced and directed by Adam Friedman and Monte Markham ; written by Jon Wesslen and Lee Fulkerson
Associated Producers presents ; a Halpern/Jacobovici production ; written and directed by Simcha Jacobovici ; co-directed by Stuart Samuels ; produced by Elliott Halpern, Simcha Jacobovici ; produced by Associated Producers in association with the Canadian Broadcasting Corporation, A&E Network, Channel 4 Television Corporation, ZDF/Arte and ZDF Enterprises