Jaws
Man, holy fuck. In a film where you barely see the antagonist, you’re still absolutely terrified. The paranoia and anxiety that the characters and people of Amity feel is present from the very beginning and in time you begin to feel it too. Spielberg does an incredible job at making you feel the suspense and terror that the massive great white inspires. It’s no exaggeration to say that this film is one of the greatest of all time and definitely not an exaggeration to say that Spielberg is a genius for what he did with this film.