Tecolote Films, Piano ; un documental de Eugenio Polgovsky ; dirección, fotografía, edición y diseño de sonido, Eugenio Polgovsky ; productores, Julio Chavezmontes, Eugenio Polgovsky
Kensington Communications [and 3 others] present ; a film by Denis Delestrac, Robert Lang, Sally Blake ; directed by Denis Delestrac, Robert Lang, Sally Blake ; producers, Robert Lang, Sally Blake ; written by Allen Booth, Denis Delestrac ; produced by Kensington Communications, Films à Cinq and CAPA Presse