Grain That Built a Hemisphere, The (film) Educational film telling the story of corn, including its genealogy and discovery by the Indians, how it has been developed in modern usage, and how its culture has spread over the earth and influenced the economic structure of the world. Produced under the auspices of the Coordinator of Inter-American Affairs. Delivered on January 4, 1943. Directed by Bill Roberts. Nominated for an Academy Award for Best Documentary.