Classify given movie review into two categories: positive, or negative based on its content.

even film silliness needs a little gravity , beyond good hair and humping .
negative

all these developments and challenges facing santa weigh down the plot so heavily that they drain all the film of its energy and needlessly strain credibility .
negative

even as it pays earnest homage to turntablists and beat jugglers , old schoolers and current innovators , scratch is great fun , full of the kind of energy it's documenting .

positive