Jurassic Park for me. I had an amazing JP jumper when I was like...maybe 6. It was far too big for me but I loved dinosaurs. Naturally this meant I wanted to watch the film because...well I'm 6 and it's got dinosaurs.
Ultimately I ended up watching it with my Mum and Dad. We got as far as the iconic T-Rex chase scene and I told them to turn it off. Didn't go near the film for another few years.
I've now got my own 6 year old. There's no scenario I could envisage where I even consider letting her watch a film as gory, tense and frightening as JP.
Aliens, I saw it before Alien. Parasitism and wanting to escape life through death are interesting concepts. Ultimately I came to my conclusions about suffering and how consciousness repeatedly emerges in the world alone. Still haven't found anyone who "gets it" but it feels really basic, what I believe. Maybe I'm missing something but it seems kind of childish to fear death the way people do. One of my horrible family members is very decrepit now and everyone is acting like he has to be as selfish and horrible about it as he is but I know I won't be like that. I wouldn't be like that, with palliative care and surrounded by loved ones. He's ungrateful. I hate him. I hope he dies soon. He will.