the only movie that left me petrified as a kid was Beetlejuice.
on a lesser level, the final fight in Who Framed Roger Rabbit creeped me out. something about a toon-hybrid Christopher Lloyd was a little creepy. the melting away was ooglah too.
an even weirder example is an old Disney cartoon version of A Christmas Carol. not because of the movie itself, but after the movie, the credits rolled over this Mickey shaped wreath. before the credits came up, there was a still of that wreath for a few seconds. for some oddball reason, both me and my sister were creeped out by it. we were really young at the time, i probably wasn't even 6 yet, but still, i don't exactly know why it did that to us. i gotta find this video now.