My dads brother visited us one time - when I was around 7 years old - and they sent me to bed and watched a movie together on TV. I’m not sure where my mom was, perhaps taking care of my little brother, but I quietly went down the stairs and saw them watching the movie, and I stayed very quietly so they would not know I’m there.
It was a Bruce Lee movie, “The Big Boss (1971)”. In that movie Bruce works at a ice factory and his boss kills some people and puts them into the ice. That’s not the worst of it. They then have those big ice blocks and a big blade saw and that saw cuts the big blocks into smaller peaces. It also cuts those bodies in the ice blocks into smaller pieces.
I couldn’t believe what I saw and went back upstairs and couldn’t fall asleep. I never told my parents.
I’ve mentioned it elsewhere, but I saw Akira when I was four and my brother was three. Our dad picked it out because “animation is for children”.
I can’t remember much of it but it left me with a deep distate for body horror and nightmares for literal weeks.
I wasn’t that young, maybe 8 but that movie still fucked me up. The hospital scene with the stuffed animals coming alive and breaking apart was and is super scary.
Ninja Scroll for me, my dad let me rent it when I was very young and I was like “holy heck what is this”