In 2005, Prince George's County-bred computer-graphics whiz Bob Moyer, now 32, was an intern working on "Cars." Last week, from Pixar headquarters in Emeryville, Calif., he said, "I got started on it super, super early. There were only a dozen technical people, tops, on that film when I began on it. And I got to deal with all kinds of neat stuff — chrome, car paint, tires, everything shiny, but also dust, rust, dirt and weird gunk. Normally with characters, you do a lot of skin, eyeballs, cloth and hair."