Finally found time to watch this. And yes, the first thing I have to say is that the animenfo description is the only one that actually somehow fits this movie. The rest, including the one in Bud's post (anidb), are way off.

Aside from the somewhat light plot, like has been said, this was a gorgeous movie. Highly impressive art and animation. This movie could be recommended to anyone interested in anime movies.

Hmm... Still, I can't help but wonder why Moon lost its gravity... An interesting shape, but shouldn't be terribly permanent.