directed, co-produced and edited by David E. Simpson ; producer, J.J. Hanley ; produced by Kartemquin Films, in association with the Independent Television Service (ITVS)
BNC, Fundació Ferran Sunyer i Balaguer, Institut d'Estudis Catalans ; en coproducció amb: 3 Televisió de Catalunya ; amb la col·laboració de: Generalitat de Catalunya, Institut Català de les Empreses Culturals ; Institut d'Estudis Catalans, Societat Catalana de Matemàtiques, Centre de Ricerca Matemàtica presenten ; direcció, Amparo Solis ; guió, Mireia Ubero ; direcció de producció, Anna Boneta
a Moxie Firecracker production presented by the Bill and Melinda Gates Foundation and Home Box Office ; produced by Rory Kennedy, Liz Garbus ; written by Mark Bailey ; directed by Rory Kennedy
American Experience Films ; story by Sarah Colt & Tom Jennings ; telescript by Mark Zwonitzer ; produced and directed by Sarah Colt ; a Sarah Colt Productions film with the participation of Arte for American Experience
a Florentine Films production ; produced in association with WETA Washington, DC ; produced by David Schaye, Paul Barnes, Ken Burns ; written by Geoffrey C. Ward ; directed by Ken Burns
the One Club and Seventh Art Releasing present ; an Art & Industry, Granite Pass production ; a film by Doug Pray ; directed by Doug Pray ; produced by Jimmy Greenway, Michael Nadeau ; executive producer, Mary Warlick