a Florentine Films production ; produced by Dayton Duncan & Ken Burns ; written by Dayton Duncan & Geoffrey C. Ward ; a film directed by Ken Burns ; produced in association with WETA
directed and written by Stephen Low ; produced by Stephen Low, James Lahti ; screenplay by Alexander Low ; an Alberta Pacific Entertainment Inc. production
a Florentine Films production ; produced by Dayton Duncan & Ken Burns ; written by Dayton Duncan & Geoffrey C. Ward ; a film directed by Ken Burns ; produced in association with WETA