Perfect Blue (Satoshi Kon)
Classic psychological thriller in which a pop idol transferring to a career in acting becomes the victim of a bizarre personal vendetta. It's a great piece of animation and uses the format to convey a disorienting world in which you can never be sure what is actually happening. Fans of David Lynch in particular will dig this, I think, and it bears similarities to his films Mulholland Dr. and Inland Empire though was made before either of them.
Paprika (Satoshi Kon)
Lively Gilliam-esque science fiction in which dreams and reality merge. It looks great and as a collection of individual set pieces is quite enthralling, but I was left feeling that it didn't come to much more than that. This was Kon's last completed feature before he died and I can't help but feel it is not the last hurrah one would want from such an imaginative director (hopefully his half-complete Dreaming Machine will be finished soon). The soundtrack is also nauseating and badly mixed with dialogue at times, which was no small source of annoyance. It's not terrible, it just doesn't work.
Hausu (Nobuhiko Kobayashi)
Japanese haunted house movie which might be the craziest thing I've ever seen. In addition to the bizarre and often hilarious death scenes, it has a sense of humour that switches from slapstick to the macabre to pure absurdism. Watch it.
Melancholia (Lars von Trier)
The thing that stood out to me most, perhaps, besides the tasteful use of CGI which is really quite breathtaking at times, is how funny it is. I did have a problem with the handheld camera work, which I understand is one of Trier's trademarks, but apart from that I have nothing bad to say about it. It's certainly the best disaster movie I've ever seen, and that's probably because it's not about survival, it's about total unavoidable destruction. Again, despite it being about that, it's funny, hilarious even, and in a wholly intentional way.