produced by Michael Kirk ; produced and reported by Jim Gilmore ; written and directed by Michael Kirk ; a Frontline co-production with Kirk Documentary Group, Ltd. ; WGBH Educational Foundation ; WGBH Boston
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