Greenwald's films include the 1990 one-hour documentary Between Two Worlds, about Inuit Joseph Idlout.
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While in his final year as a student at Conestoga College, he directed the 1975 film Metamorphosis, inspired by Czech documentary filmmaker Vaclav Taborsky, which won the Short Film Palme d'Or at the Cannes Film Festival.
He was posthumously the subject of the 1990 documentary film Between Two Worlds, directed by Barry Greenwald and produced by the National Film Board of Canada (NFB) and Investigative Productions Inc.
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