National Geographic presents a Lightbox production ; producer, Sarah Gibson ; produced by Jonathan Chinn & Simon Chinn ; directed by Dan Lindsay & TJ Martin
a film by Whitney Dow and Marco Williams ; a Working Films and Two Tone Productions DVD, produced in association with Transient Pictures ; directed & produced by Whitney Dow and Marco Williams
a Firelight Media Production for American Experience ; a production of WGBH, Boston ; produced and directed by Stanley Nelson ; written by Marcia Smith