Parasite
I think the length is my only real problem. It's a deep story if you're into analyzing all the symbolism and allegory, but it works great as a surface level story. Watching it a second time and knowing where it was going, I was able to pay more attention to the characters, who are all expertly played, and the ending makes more sense now. A sad and beautiful story, but it really didn't need to be over two hours long. It's got a lot to say, but it does feel stretched at times.