Steven Spielberg's Jaws took some of the most interesting aspects of the aquatic creature feature subgenre and redefined it with simplistic methods. With a shark that rarely worked, POV shots took the already realistic concept of shark attacks and made them scarier as the audience knew the shark was there but not how big it was. This slow burn technique also paid off in the third act when viewers got a full look at how large the fish beast was. But the end of the movie also brought out the best and worst of its three protagonists, Martin Brody, Matt Hooper and Quint.
Source：https://www.cbr.com/jaws-movie-changed-quint-death/
