Emile Hirsch plays Speed Racer, younger brother of a deceased racing legend, Rex, and son of car designer Pops (John Goodman). The latter invented Speed's Mach 5, and is singularly unimpressed by an offer from a giant conglomerate that would lock Speed into exclusive racing services. Speed opts instead for family loyalty, incurring the wrath of the conglomerate's unctuous head (Roger Allam). With family honor on the line and the affections of girlfriend Trixie (Christina Ricci) behind him, Speed hits the track in hopes of fulfilling his destiny as a master racer. The cast is largely enjoyable, including Susan Sarandon as Speed's mom, Matthew Fox as mysterious Racer X, and a pair of chimps as the irrepressible Chim-Chim. All well and good, but in a movie that lives or dies by the excitement level of races that look like computer-animated Hot Wheels action, Speed Racer is a dreary adventure. --Tom Keogh