InStyle.com: With a swipe of red lipstick, a teasing comb and some skintight spandex, Sandy shook her good girl image once and for all. Thanks to a broken zipper, Newton-John had to be sewn into those red-hot vintage 50's pants.
Katniss Everdeen undergoes a big change in ''Hunger Games''; EW and InStyle break down other movie faves who went from drab to fab on screen. (NOTE: The second half of this gallery is on InStyle.com)