I saw this film from the Cartoon Brew blog, and, despite being really wierd and creepy, it's stuck with me. I've already seen it several times, and...yeah. There's just something about it. Great style, and very much deserving the awards it's nominated for.
PS - Those kids are ruthless AND powerful! I can't cleave a full-grown sheep in half with a hatchet - in ONE SWING. You'll see what I mean. ;D