Neon Genesis Evangelion: The End of Evangelion, Akira Recommendations
Two of the most mind-blowing endings ever created.
Both are disturbing and involve giant figures in some kind of world apocalypse or enormous destruction. Both also come pretty close with a giant mindfuck if you like that sort of thing. Both are equally masterpieces in their own right.
Both movies explore the depths of the psychologically disturbed characters and are abstract in their own unique ways. A lot of thought is required in order to piece together what had happened. There is also plenty of action and gore in each to top it all off.
If you have seen at least one of them and you like a weird, unique, trippy, fascinating, WTF-experience then this is likely for you. (If you didn't watch Neon Genesis Evangelion: The End of Evangelion yet, then of course you should watch the original series: Neon Genesis Evangelion first.)