I watched the anime version first, and was looking for a live action version that followed the same story line as the anime, but I found this. I wasn't really expecting much from it as I knew it was a very altered story line and for the first 20/30 minutes I wasn't very open minded about it. At the start the graphics were quite bad and I didn't see how it was at all related to the anime. But as the movie went on, I found myself completely engrossed in it, and I was very pleased to see that it did manage to fit in a connection with the anime - which I thought was actually quite clever too.
So I rated this movie so high because I really wasn't expecting to like it, but by the end I was bawling like a baby, and any film that can do that is a good one in my books.
