Let me get this out of the way right now: I'm pretty sure kids will love The Polar Express, the full-length movie based on Chris Van Allsburg's beloved 32-page book. While I like to think that I still have an inner child, Robert Zemeckis's latest cinematic stunt gave me the wrong kind of chills. Using motion-capture CGI technology--live actors and cameras and reflective pellets and infrared capture receptors--Zemeckis has made a movie during which, every five minutes, the adults in the audience can tell themselves, "Ooh, that kind of looked real." …