Léon Gaumont had demonstrated a system involving mechanical synchronization between a film projector and turntable at the 1900 Paris Exposition. In 1902 his Chronophone was demonstrated to the French Photographic Society; Four years later he introduced the Elgéphone. The Elgéphone was a compressed-air amplification system based on the Auxetophone and was developed by British inventors Horace Short and Charles Parsons (“Motion picture, Sound film”). In 1913 Edison introduced his new invention which was exactly like the Kinetophone but instead was projected on a screen but retired not long after because of its form of synchronization. The Finnish inventor Eric Tigerstedt was granted German patent 309,536 for his sound-on-film work in 1914; the same year he showed a preview of a film he was making in Berlin. A number of inventors that had failed helped the later more advanced sound-film technology. An American inventor Lee De Forest was awarded several patents that lead to the first sound-on-film technology. At New York City’s Rivoli Theater, on April 15, 1923, came the first commercial screening of motion pictures with sound-on-film, the following year De Forest released the first commercial dramatic film shot and not too long after the Warner Brothers came to play and dominate the film industry (“Motion picture, Sound film”). Realizing that talking movies were not just a “fad” but were something that their audiences had been asking for and thus came Vitaphone movies. Actors had to look into the camera in order to be heard and if they were to turn away you would not be able to hear them because the microphones were very sensitive. People liked to see actors speak “hence the term diegetic sound, which was sound that ‘naturally’ occurs within the screen such as an actor speaking, singing, or playing an instrument on the screen” (Hayward 85). These films were called “talkies” and it reinvented society in various ways, it opened the door to many other ideas such as singing, dancing, live plays, and skits, the idea of a film created much more than just art it created a future for entertainment.