The song is "Dreaming of Stiles" from the score for Teen Wolf by Dino Meneghin.
I just had to make this vid. I couldn't rest until I did, even though I'm - as you'll see - not much of a vidder.
I made this using VSDC. I'm still figuring out what it's capable of so don't judge it by my crappy vidding, for freeware that allows non-linear editing it's great.
