I liked it very much. I sorta remember it from the movies, but haven't seen them in a while. I think it needs a bit of accompaniment, but the ending was solid. Was it just me of did the song seem a bit low? I'd like to see what it sounds like a bit higher (pitch).
I just listened to it again, and it sounded better hearing it a second time.
EDIT: did it have accompaniment in the movies?