Tecolote Films, Piano ; un documental de Eugenio Polgovsky ; dirección, fotografía, edición y diseño de sonido, Eugenio Polgovsky ; productores, Julio Chavezmontes, Eugenio Polgovsky
a David McIlvride film ; a Roger Williams production ; Paddle Productions Inc. presents ; written by David McIlvride ; directed by David McIlvride & Roger Williams ; producer, Roger Williams ; producer, Lisa Mazzotta
a film by Stephanie Soechtig ; Atlas Films presents in association with Diamond Docs ; writers, Mark Monroe, Stephanie Soechtig ; producers, Joshua Kunau, Kristin Lazure ; director, Stephanie Soechtig ; co-director, Jeremy Seifert
Bullfrog Films presents ; [directed by Robert Peace and David Calderisi] ; script/narration, David Calderisi ; an EIA Environmental, Credit Valley Conservation Authority co-production
Bullfrog Films presents ; [directed by Robert Peace and David Calderisi] ; produced by Robert Peace & David Calderisi ; written & narrated by David Calderisi ; an EIA/Water and the Human Spirit production