A CHRISTMAS CAROL (*1/2) — Officially, the title is Disney's A Christmas Carol, which is acceptable since it sure as hell isn't Charles Dickens' A Christmas Carol. While it might be true that this animated version retains more of the literary classic than might reasonably be expected, it's also accurate to state that a key ingredient of the novel — namely, its humanist spirit — is largely missing from this chilly interpretation. Director Robert Zemeckis, who used to make fun movies in which the spectacular special effects served the story and not the other way around (Back to the Future, Who Framed Roger Rabbit, Forrest Gump), has become obsessed with the motion capture process (this is his third consecutive picture utilizing this unseemly technique, following The Polar Express and Beowulf), and one gets the sense that he chose the Dickens chestnut not because of a desire to revive its moral tale for a new generation but because it seemed like a suitable vehicle for his new techno-toys. But Zemeckis can't keep still, and rather than remain within the parameters of the meaty story, he follows in the footsteps of the recent Where the Wild Things Are adaptation by fleshing out a story that didn't exactly cry out for extraneous material. But while Wild Things' additions at least made thematic sense, Zemeckis pads the material with such nonsense as Scrooge (Jim Carrey) being blasted into the stratosphere or dashing through the cobbled streets of London (a chase scene? Really?) while simultaneously turning into the incredible shrinking man. Carrey gives the role of the miserly Scrooge his all (he also voices a half-dozen other characters), and the 3-D effects (offered in select theaters) are expertly realized. But you don't need glasses — 3-D or otherwise — to see that this holiday release is too diluted for adults, too frightening for children, and too tiresome for just about everybody.