Movies you saw at a too-young age (and its effects on you)
I saw a lot of movies that I probably shouldn't have in the eighties as a little kid, mostly because my father was a huge movie enthusiast. As a parent myself, I think about waiting longer to introduce the same movies to my kids, even though I believe it had no long term effect on me (how someone can truly make that conclusion about themselves may be questionable, but I believe so).
But there are cases where it causes problems. We know a kid at school who is 6 and is into Hellraiser, Pennywise / It, Freddie / Nightmare on Elm Street, Jason / Halloween, etc, and he has a few tendencies to get violent when he doesn't get what he wants. He has made threats to other kids about cutting their throat, putting plastic bags over their heads, strangling them and so on.
The only thing I can recall from watching scary movies as a little kid is freaking out about flashing lights in the sky during thunderstorms because of Close Encounters of the Third Kind, and being afraid to go into a dark room because of Alien. I was also afraid to watch An American Werewolf in London again until my 30s because I saw it just as a little kid and remember it vividly - the stalking scenes in the field at night, the transformation, the subway scene.
Those things wore off soon enough but I'm curious to know what other things affected others at a young age?