The Salesman (1969 movie) reference article from the English Wikipedia on 24-Jul-2004
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Salesman (1969 movie)

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Salesman is a 1969 cinema verite documentary film which follows four salesmen of expensive Bibles door-to-door in a low-income neighborhood which can't afford expensive Bibles. It was directed by brothers Albert and David Maysles, and Charlotte Zwerin. The film has been deemed "culturally significant" by the United States Library of Congress and selected for preservation in the National Film Registry.

External link: The Salesman official website