On the first day of Macworld|iWorld, one of the talks on the main stage was by three people who help bring the animated series South Park to life each week: David Lenna (CTO), Ryan Quincy (Animation Producer), and Eric Stough (Animation Director and Producer). It was an interview-format talk, with the questions being asked by Andy Ihnatko. There were clips from the series as well as from last fall's documentary Six Days To Air. The unique style of South Park's animation comes from its humble beginnings. When co-creators Matt Stone and Trey Parker first started shooting animation, they were actually using construction paper cutouts. Time constr