So the Japanese film turned out to be Korean and really quite charming.

It went by the fine name of I'm a Cyborg and I'm OK.

Young-Goon enters a psychiatric hospital claiming that she's a cyborg and the film charts her time in the hospital, her encounters with other patients and eventually turns into a sweet little love story. Sounds innocuous enough but it's done a slightly crazy technicolour Amelie meets Charlie and the Chocolate Factory way that is (once you've given in to it) delightful.

I shan't bleat on any more and ruin it for you but more info here. Though I think it's on its last night at the Filmhouse tonight and a little screen would belittle it so catch it if you can.