a NOVA production in association with Night Fire Films and ARTE France ; written and directed by David Lebrun ; produced for Nova and narration by Sarah Holt ; produced by Rosey Guthrie and David Lebrun ; edited by Nathan Hendrie, David Lebrun, and Eric Marin
produced by Story House Productions Inc. and Thirteen Productions LLC for WNET in association with ZDF, Arte and ZDF Enterprises, GmbH ; writers, Andreas Gutzeit, Alexander Ziegler ; directed by Jen Afflerbach, Saskia Weibheit ; produced by Alexander Ziegler, Andreas Gutzeit, Jens Afflerbac
Instituto Nacional de Antropología e Historia ; John Simon Guggenheim Memorial Foundation ; guión, Ethelia Ruiz Medrano ; filmación y dirección, Helios Figueroa