Smithsonian Channel ; National Endowment for the Humanities ; Spark Media ; directed by Andrea Kalin ; produced by Andrea Kalin, David A. Taylor, James Mirabello ; written by David A. Taylor, Olive Emma Bucklin, Andrea Kalin
a film by Enrique Sánchez Lansch ; written and directed by Enrique Sánchez Lansch ; a co-production of Eikon Media and RBB in co-operation with Cine Impuls