From S Club to Black Swan: Rachel Stevens plays dress up as Natalie Portman's Oscar-nominated role

By ANDREA MAGRATH Doppelgänger: Rachel Stevens emulates Natalie Portman in Black Swan, with slightly less dramatic results It is one of the hottest films of the year and she has been the most-talked about actress during this Awards season.So when Rachel Stevens was asked to emulate a character in one of the nominated films from the 2011 British Academy of Film and Television Arts Awards (BAFT...