Stop-motion films are by their nature some of ... “If aspects of [the puppets] are silicone, it saves a lot of remodeling. But even with the silicone, we’ve become a lot better.

However, since the silicone isn't expressive like clay, they can't use full silicone puppets for the stop motion. "With the clay, you can sculpt it to anything you want basically, so a lot of the ...