I heard on the news a tidbit about the film Coraline. They said the number of combinations of movements that went into Coraline's face was over 200,000. They made that sound like it was a huge number and a lot of work. But of course, I know they're talking about permutations, which dramatically decreases the necessary number of inputs. I was trying to figure out (while driving) how few points of motion it would require to exceed 200,000 permutations, but I got stuck. Say each point of movement (an eyebrow, tip of the nose, corner of the mouth) has only 5 positions (way down, down, neutral, up, way up). How many points must there be? It's not 200,000 = 5^n is it? That makes a mere 8 points of movement required to make 200,000 expressions.