Hmm trying to work on my memory here as I've had a very big movie phase that's faded (hopefully it will be back).
The Joker with Joaquin Phoenix. Firstly I found it kinda bland. I liked Taxi Driver a lot so I was thinking the joker was too straightforward instead of letting it more subtle when I watched it on theaters the first time. However when rewatching it I appreciated it considerably more.
Taxi Driver as well. At first I had no idea what I was watching. Later on I managed to get some further insight (at least I think so lol) and it came off as a powerful message to me, delivered very well.
Hereditary... As another example. First time I watched it on the movies, I found it a little meh I think, I was kinda anxious tho, not because of the movie, as I like horror movies, it was just the moment. When I watched it later at home I noticed layers, a possible metaphorical layer that added a lot to the movie for me... And the performances had a powerful touch as well.
Once I started seeing horror movies besides simply the unnatural lens, it became somewhat more real, as in, I could see many horror with unnatural and ungodly stuff being a subtle representation of real life human emotions, struggles... Which might or might not be the intention, but made them less fun in the sense of that jump scare or edge of the seat thrill when I was a teen and more immersive, less of that adrenaline fear and more of that real reflection... Which added more as well since I was starting to find horror movies with only the unnatural layer blend but I enjoyed those times I'd just be thrilled by what is shown and not (even unconsciously) associate it with an irl "beyond what is shown" situation within the human mind.