Identifying a weird movie

Hi everyone, this is my last resort. I have been searching for this movie for years. Several years ago I rented a movie from Tsutaya (the big branch in Shinjuku) about a weird gothic/alternative girl who walks on rail roads and lives in a derelict/abandoned building which she decorates with her art instalments. She meets a guy and they have a strange romance. It was a live action movie, but I believe it was in the animation section under staff recommendations (no idea why it was there, but it might have been made by an animation production company).

I really want to watch this movie again, it was one of those bizarre movies that leave an impression. If anyone could help me find the name of the movie, I would be extremely grateful!

Is it a Japanese movie? or a foreign movie imported?
When did you watch it?(exact year), what else you remember?