In just short of a month, Walt Disney Studios is set to release 'Tron: Legacy,' which is not only the latest film to use performance-capture to create virtual characters, but the first to actively try and create a character who looks and acts like someone audiences know. Whether or not the film ultimately conquers this considerable challenge remains to be seen, but the film's imminent arrival in theaters is a reminder that the technology used to accomplish its artistic goals is still in the earliest days of its existence. And while Jar Jar Binks and Gollum are certainly progenitors of this technique, it seemed more appropriate (not to mention timely) to instead focus on the first film that used entirely performance capture in order to create its cast: 'The Polar Express.'