The Grandfather Drum -- Film Description:
"This unique animation follows the story of Naamowin's drum, a drum revered for its healing powers by the Anishinabek of the upper Berens River. Upon the death of his grandson, Naamowin builds a healing drum given to him in a dream that can restore life. However, Christianity and government have other plans that disrupt the delicate balance between the sky-world and the underworld."
-- Thunderstone Pictures

Source:
"The Grandfather Drum" Thunderstone Pictures. http://grandfatherdrum.com/. [official site]