THE PRINCESS AND THE FROG has an old-fashioned look, in a good way. Gone are overblown CG effects; what’s left is good, old-fashioned hand-drawn animation and storytelling that thrums to the beat of a big, old-fashioned heart. What’s not traditional is the heroine, Tiana, who -- very refreshingly -- fends for herself and doesn’t need to be rescued as much as learn. Plus, a Disney staple -- the love song -- takes a surprising turn here, telling the story of one couple while illustrating the sweetness of another.