Despite relentless cliché and corn, Jack Frost will probably keep kids occupied -- there's a snowboarding scene with catchy music, a couple of snowball fights, and Michael Keaton coming to terms with his snowman status. ("Is it the name," he wonders? "Nah, it can't be. That isn't even clever.") But though Charlie's snowball-fight rival suggests that "a snow dad is better than no dad," a therapist might differ.