Must see japanese movies?

I'm not really a fan of japanese movies (and dramas) but i suddenly feel like watching some? I don't know good ones, so recommend some please. Must see japanese movies? Also i'm more into drama and romance, so maybe something with them?

Rurouni Kenshin Liar Game (but better to see the dramas also)

Here's some japanese movies that I like:

Tada, Kimi Wo Aishiteru
Shinigami no Seido
Paradise Kiss
Chonmage Purin

Brain Man and Platina Data. (Thriller/crime etc)

Paco and the Magical Picture Book (fantasy)

Paradise Kiss & Runway Beat (romantic/comedy/school/fashion)

and then we have Love Letter, a classic! :)

The best Japanese movies I've seen have other genres but lets see... * Crows Zero 1 & 2: definitely a MUST SEE, they're not romantic on any way though. The cast is 99% male and most of the movies goes into fight scenes, but they are a jewel from the "artistic" point of view so I recommend it anyway. * Koizora: if you're looking for drama and romance then THIS. Lots of both. There's also a drama with the same story but I prefer the movie. * Air Doll: a not ordinary romance but, well, if you want something unusual, weird and more mature then give it a chance. * Paradise Kiss: they did a great job on the production for this one.

If you like movies with impact I recommand: Love Exposure, Confessions, and nobody Knows. If you're looking for a good and funny movie : Cyorg She If you want to try a live action: hitokiri <333 (it was a blockuster in japan)