Thorntons 'Stuck'

I found a wonderful ad yesterday on bestadsontv (very much worth signing up, it's free now). I was blown away, such a simple idea, executed so elegantly. I love the look of the child's face while he thinks. I haven't been fascinated about an ad for a long time.
I am with this one.

Watch it here, on bestadsontv, the quality is far superior to youtube. Done by creative team Tom Ewart & Dave Sullivan from SHOP London, does anyone know anything about this place? First time I hear about it. The spot is directed by Harmony Korine, who's most notable for his screenplay for Kids, at the age of 19.