The anime Perfect Blue. It was ahead of it’s time. 1997 but the parasocial aspect of society it explores was in it’s infancy compared to current time.
Jurassic Park 1
Blade runner 1
2001: a Space Odyssey
The Matrix 1
They all hold up so well and in particular their vfx. In the Matrix it’s probably more the plot than the vfx, even though it had merit coining that frozen up bullet time shot aesthetic. But in general every time I watch these I can’t help but marvel at how well put together they are and then I remember when they were released and then I compare them to the mediocre releases decades after that and yeah. I’m in awe.
Howard the Duck. That movie is wonderful
“No Country for Old Men” feels like a movie from a previous era.
It Follows is pretty timeless. (intentionally so, by the director.)