People who have seen the Twilight movie -- Bella's Lullaby?

What is Edward's real lullaby? The one he actually plays for her! I've heard it's Yiruma's "River Flows in You". Is It? Or is it actually totally original? Is it pretty? Beautiful? Was the movie good? I know it's not as good as the book, but was the movie actually good? I would see it myself, but I live in Germany and have to wait till January 15th to see it.... Please answers from people who have actually SEEN the movie, not heard rumors.