Perfect Blue (1997). Some of the best transitions I've seen in film which not only gives the film more style but also deliver information, show passage of time and also confuse you like the female protagonist and express her losing sense of time and reality, amazing attention to detail, talks about a lot of subjects that are still very relevant today and do connect to each other in some ways, some great clues, a great twist and some fairly interesting characters that also serve for the themes of the film. I also love how it plays with the idea of fantasy-reality and also describing what Mima is going through her life through the film as it shows a amazing way of breaking the 4th wall, comments on many things at the same time and tell the events occuring in the film the protagonist's development, etc. The animation, while not perfect, is quite beautiful and makes the psychological horror feel more grounded and that more terrifying. It's also one of those you can watch everytime and learn something new from it. It is my 4th favorite film of all time, the best Satoshi Kon film, the best horror film and the best animated film I've ever seen. Though, while I would say it's a pretty disturbing film, I find it more fascinating than disturbing. It's a great must-watch-multiple-times. It does have some pretty surrealistic-like moments but it isn't supernatural at all but rather, it is psychological and it is very grounded in its horror. Although, it does have a few scenes with a fair amount of gore in it but doesn't go overboard.