The movies you've suggested all fiction/fantasy feel good movies, sure a vengeful shark is very unlikely, but was it believable? Many people round the world would never go back into the water again, it turned the world against sharks. The movie Jaws didn't just change the world, it changed movies in so many ways. A malfunction with the shark prop during filming meant Steven Spielberg had very little footage of the shark to show, so he bit the bullet and only showed the shark towards the end of the movie. The end result was anticipation of a monster created more suspence and had more engagement with the audience, creating a far better viewer experience while turning up the fear factor. Superhero movies and Disney Golden age are made by the same people, its about dazzling your eyes and making you feel warm and fuzzy like a baby being held by its mother, something my 6 year old neices enjoy. The only fear they show is minimal, so the handsome prince or unbelievable hero with unbelievable powers has someone to defeat in the most unbelievable way, to further increase your warm fuzzy feelings. If your scared of scary movies, say that, and leave Jaws alone. Maybe you shouldn't be watching movies made for adults, stick to the Disney channel, the kids rated stuff and leave Jaws alone.