Candyman.

Holy fucking shit, saw it when I was maybe ten years old. I didn’t go into a bathroom for weeks after that, I peed outside against a wall. There was absolutely no way I was going in any room with a mirror.

Felidae

Or whatever the animated movie featuring a gory cat detective story was called.

Hannah Montana-specifically an Halloween episode referencing murderous puppets

This, not too long ago: https://en.m.wikipedia.org/wiki/Goodnight_Mommy

Nothing probably haunts me to this day but there were some horror anthology series that were pretty harsh when I was little. I also vaguely remember a movie about some creepy doll. I don't think it's Child's Play, but just about any creepy doll would do, though.

Exactly the same! I saw it when I was 8. Also the original Resident Evil movie.

Not a movie but a series... The highway men or something like that. Sort of a mad max inspired series about guys in a truck and one of the trucks could become a helicopter or something? I think it failed after one season.

Anyway, there was an episode where a UFO crashed, the guy had to transport the pilot alien in his trailer and he had a camera in there and the alien, covered by plastic, sat upright.

Didn't sleep for weeks, still haunts me 40 years later

From dusk till dawn

The Icecream Man. I had never watched a proper horror movie before, I was scared of the icecream van coming around for ages.

Gigi. I loved back when I was a little girl (“leeetle girrrrl”), but rewatching as an adult I was HORRIFIED.

The Screaming Woman when I was 7. About a woman buried alive.

Return to Oz.

DoooooorrrRRRRRRRRTHHYYYYY GAAAAAALLLEEEEEE!!!!!!!!

Hereditary. I’m old and I still insist I am too young to watch it.

Deliverance.

If you love this planet.

A short documentary about nuclear war. Saw it when I was about 12, images that last a life time.