Bullfrog Films presents ; a documentary by Gabriele Zamparini and Lorenzo Meccoli ; written and directed by Gabriele Zamparini ; produced by Lorenzo Meccoli and Gabriele Zamparini ; Thecatsdream.com
produced by Michael Kirk, Jim Gilmore, Mike Wiser ; written by Michael Kirk & Mike Wiser ; directed by Michael Kirk ; a Frontline production with Kirk Documentary Group ; WGBH Educational Foundation ; a production of WGBH Boston