Lighter -- do you seek out scary movies, ever? Or watch them with friends?
Seeking out fear is a fun thing to some and hide-under-bed misery to others. Your mentions of "Jaws" music reminded me of how much audience laughter erupted alongside their shrieks during the movie.
Plenty of very nice, very sane people enjoy movies I don't even want to think about. And maybe that's another way of finding out who we are.
I can't watch horror movies, EVER, but do enjoy and seek out thrillers of the Jason Bourne variety (and a few worse.)
For me it's partly whether my present life has enough stimulation. Jaws themes or gory poms -- are these flashes signs of stress? Hmmmm. MIGHT want to take up ... dunno ... bungie jumping? Or I know, memoir writing! I swear it'll give you very satisfying, on the edge, adrenalin rushes....
I wonder how somatic it all is, and how complex the variability among all of us and how amazing our unique and individeal wiring is. Sensation-seeking. Some seek a scrap of velvet, others free climb up a rock face. (My friend Gennulman did that for years, amazing photos of him like a ladybug on a wall very high in the Rockies, nothing but balance and finger strength keeping him safe. I can barely look at the pix.)
A current favorite of mine that is, ironically, very comforting -- surprising me every time. 24 Hours in A&E (BBC documentary about a trauma center hospital in the U.K. -- won a load of awards, it's brilliantly done). Completely unscripted. They put about 300 cameras in emergency depts but spend as much time on the ordinary people being brave and loving and lots of small human moments/interactions as they do the drama of injuries/illnesses. It's the attitude and the compassion and the remarkable goodness of so many people -- plus extraordinary editing, that make it so compelling to me. It's like a bedtime story. Not as weird as it sounds, if you watch a few ... you'll see what I mean.