And while the writer-director acknowledges that the movie is “shocking at first,” it maintains his devotion to old-fashioned, hand-drawn 2D animation. “I love hand-drawn animation,” Tartakovsky says. As a champion of 2D hand-drawn animation, what do you think is so important about preserving this particular method of animation? In CG animation, there's a main puppet, and then you articulate the puppet and it makes it look great and great animation. And I think there's just something about it, probably it's that I keep saying that hand feel, it's the purity of it.