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One-Round Hogan is a lost 1927 American synchronized sound boxing-drama film produced and distributed by Warner Bros. and directed by Howard Bretherton. While the film has no audible dialog, it was released with a synchronized musical score with sound effects using the Vitaphone sound-on-disc process. The film starred Monte Blue and Leila Hyams. Blue also appears in the 1925 predecessor called Hogan's Alley, written by Darryl F. Zanuck.