a Frontline co-production with Hedrick Smith Productions ; WGBH Educational Foundation ; Frontline executive producer, David Fanning ; senior producer, Hedrick Smith ; producer, Marc Shaffer ; written by Hedrick Smith and Rick Young ; director, Rick Young
Aldo Leopold Foundation, U.S. Forest Service, Center for Humans and Nature present ; a film by Ann Dunsky, Steve Dunsky, Dave Steinke ; executive producer, Buddy Huffaker
Paramount Pictures and Participant Media present ; an Actual Films production ; produced by Jeff Skoll, Richard Berge, p.g.a., Diane Weyermann, p.g.a. ; directed by Bonni Cohen & Jon Shenk