written and produced by Peter A. Steen ; director, Bruce Nash ; created by Bruce Nash ; produced by Actuality Productions, Inc. for the History Channel
produced by Society of Manufacturing Engineers ; executive producer, Thomas J. Drozda ; director/cameraman, Steven R. Bollinger ; written by Curt LaLonde
un produzione Wildside e Vision Distribution in collaborazione con Sky, Prime Video ; sceneggiatura, Francesca Archibugi, Paolo Giordano, Francesco Piccolo, Paolo Virzì ; prodotto da Mario Gianani, Lorenzo Gangarossa ; diretto da Paolo Virzì
College of DuPage Satellite Network ; College of DuPage Library Learning Network ; College of DuPage Press ; executive producer, Joseph Cassidy ; project director, Ellen Sutton ; producer/director, Jim Nocera ; writer/producer, Ed Kuhs ; a production of Information Technology, Multimedia Services and the Office of Special Services in cooperation with the Library at College of DuPage
a Howell at the Moon production with the International Mountain Bicycling Association ; Howell at the Moon Productions in partnership with Forest Service, U.S. Department of Agriculture, Shimano, Specialized ; produced by Jeff Ostenson ; written and directed by Jamie Howell
Paramount Pictures presents a Ron Howard film ; screenplay by Lowell Ganz & Babaloo Mandel ; story by Edwin Blum and Lowell Ganz & Babaloo Mandel ; produced by Tony Ganz and Deborah Blum ; directed by Ron Howard