This movie. The Shinkai bomb.
We have all seen romance stories. And I will be sincere, this is not the most innovative movie, judging by it's romance alone. Yet, somehow, the slight supernatural aspect of it, coupled with (though not necessarily very strange, new, or, again, innovative, but relatable thanks to that though) extremely lovable characters and just altogether a really nice execution of comedy/drama, and it's kinda' bitter-sweet taste makes this movie SOOO MUCH more...
I thoroughly recommend you watch this movie if you have the means to do so. If not, get that Blu-Ray when it comes out. This just needs to be watched in HD, just like Kotonoha no Niwa. I shall watch it at least 2 more times, when I get a chance to do so.