What was the first talkie motion picture?

"The Jazz Singer", released in 1927, was the first feature-length movie to present audible dialog to audiences. It used a disk recording that was (more or less) synchronized with the film, but was not actually recorded on the film.

The Jazz Singer was a transitional effort to provide pre-recorded sound with a movie. Dialog was still shown on title cards, but Jolson's musical numbers were presented in sound. The first movie to have a complete dialog sound track was "Lights of New York", released in 1928.