The film is a pioneer of sound film. The singer in "Jazz Singer" opened his tarred mouth and sang, opening a brilliant chapter in a sound film. There are only two lines of dialogue in the film, and the effect is not satisfactory, but this film starring jazz singer Jolson can be said to be the embryo of a song and dance movie
.
The story of "Jazz Singer" is not unique in itself, but as the first long-form narrative film in film history that uses simultaneous sound recording technology, it is also enough to leave a name in history. The film "Jazz Singer" is one and a half hours long, and the simultaneous voice dialogue is about two minutes. It's far from being a complete "audio movie". Subtitles that are common in silent movies are still seen everywhere in the movie. But it is this that gives "Jazz Singer" the fossilized meaning of Archaeopteryx: you can see the transition of the entire film industry from "silent" to "soundless" in a movie
.
