To this day, I struggle being alone at night. I'm jumpy, imagine all sorts of weird and nasties creeping and crawling around the dark recesses of whatever room I'm in. It's not debilitating, as I've learned to consciously reason out of my fear of irrational things, but it still pops up in my head. Still makes me jumpy. Still makes my heart-race, and still pisses me off that my mind would do that to me.
Needless to say, I'm not showing any such movies to my kids until they're at-least mid-teens.