This fractured 3-D fairy tale gathers up a hodgepodge of kiddie icons, turning them into a bedtime-story X-Men team. The voices include Alec Baldwin as the blustery North (i.e., Santa), Isla Fisher as the sweet Tooth (i.e., the Tooth Fairy), and Hugh Jackman as E. Aster Bunnymund (i.e., the Easter Bunny). They’re mildly engaging, but nothing they do surprises you, and the hero, Jack Frost (Chris Pine), is saddled with a vague dilemma: Can he find his ”center” by realizing that kids believe in him? It’s all more lightweight-likable than exciting. B?