In 1927, Kahn produced two Vitaphone film shorts called "Night Club". One short featured an act called the Williams Sisters (a singing/dancing duo). Both shorts were filmed on February 14, 1927 at the Manhattan Opera House on 315 West 34th Street in New York, and the Williams Sisters were featured in the short numbered Vitaphone #469 as 'signing and dancing youngsters' performing a number titled "Thinking of You." The Vitaphone film was an early attempt at sound movies which used both film and disk for sound. A reviewer in the "San Antonio Express", April 10, 1927 wrote: ""Roger Wolfe Kahn's specialty on the Vitaphone is undoubtedly the best subject offered since the installation of the devise. His instrumental harmony is wonderful and original... and the Williams Sisters act brings the act above par for any circuit."" A copy of the sound disk supposedly exits at the Library of Congress in Washington, but the film elements are missing and presumed lost.