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Movies in the Roaring Twenties: Hollywood became a glittering entertainment industry with star directors like Charlie Chaplin and Buster Keaton. But the gloss and fantasy was challenged by movie makers like Robert Flaherty, Eric Von Stroheim and Carl Theodor Dreyer, who wanted films to be more serious and mature. This was a battle for the soul of cinema. The result: some of the greatest movies ever made.
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