This delightful reimaging of Rapunzel updates the Grim Brother's story without altering the story in a way that feels slavishly beholden to contemporary ideals and marketing. Writer Dan Fogelman (Cars, Fred Claus, Bolt) is to be commended for threading a needle with Rumpelstiltskinequse dexterity and Disney Animation's first blending of its traditional fairy-tale princess musical with its hip Pixar-style CGI dynamism works surprisingly well.