The Gulf Between (1917)
The Gulf Between (1917) was the first motion picture made in Technicolor, the fourth feature-length color movie, and the first feature-length color movie produced in the United States. Today, the film is considered a lost film, with "very short fragments [surviving] ... at the Margaret Herrick Library, George Eastman House and the Smithsonian National Museum of American History Photography Dept." (See External links below.)
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