The Jazz Singer
On 6 October 1927, Warner Brothers released "The Jazz Singer" with Al Jolson in Vitaphone. The film is often incorrectly credited as the first talking picture. "The Jazz Singer" was the first feature film to use synchronized sound for talking sequences rather than just for music and sound effects, and thus launched the talkie era, but DeForest's sound-on-film system was in fact the basis for modern sound movies.