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Excerpt From "The Plow That Broke The Plains". The Plow That Broke the Plains is a 1936 short documentary film which shows what happened to the Great Plains region of the United States and Canada when uncontrolled agricultural farming led to the Dust Bowl. It was written and directed by Pare Lorentz. The film was narrated by the American actor and baritone Thomas Hardie Chalmers.

In 1999, The Plow That Broke the Plains was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".