L to R: Getty Images (2), AP PhotoRooney Mara’s Style: ‘Dragon Tattoo’ Star on the Red Carpet (PHOTOS)From black Prabal Gurung to leather Michael Kors, the star’s edgy looks to promote ‘Dragon Tattoo.’01.10.12 3:00 AM ETL to R: Getty Images (2), AP PhotoTiziana Fabi / Getty ImagesMara wears a Valentino lace dress with sheer sleeves to the Roman premiere of Girl With the Dragon Tattoo on Jan. 9. Gero Breloer / AP PhotoRooney Mara in Michael KorsMara stuns in a Michael Kors dress with black Nicholas Kirkwood heels to the German premiere of Dragon Tattoo in Berlin on Jan. 5. Gero Breloer / AP PhotoRooney Mara in BerlinMara poses in head-to-toe Miu Miu at a photo call for Dragon Tattoo in Berlin earlier that day. Carlos Alvarez / Getty ImagesRooney Mara in RodarteMara attends the film’s Spanish premiere on Jan. 4 in a white and black Rodarte dotted silk chiffon gown with black bow details and Givenchy shoes. Paul White / AP PhotoRooney Mara in Givenchy blazer and Louis Vuitton shoesMara looks sleek in a Givenchy patchwork blazer and black Louis Vuitton heels while posing for a photo call Jan. 4 in Madrid. Jacques Brinon / AP PhotoRooney Mara in Louis VuittonMara walks the red carpet in this Louis Vuitton Pre-Fall black dress at the premiere in Paris on Jan. 3. Jason Kempin, NBCUniversal / Getty ImagesRooney Mara on "Late Night with Jimmy Fallon"NEW YORK, NY - DECEMBER 19: Actress Rooney Mara and host Jimmy Fallon visit "Late Night With Jimmy Fallon" at Rockefeller Center on December 19, 2011 in New York City. (Photo by Jason Kempin/NBCUniversal/Getty Images) Larry Busacca / Getty ImagesRooney Mara in Prabal GurungAt the New York City premiere of Dragon Tattoo on Dec. 14, Mara wears a black Prabal Gurung dress with Christian Louboutin heels and a Fred Leighton ring. Joel Ryan / AP PhotoRooney Mara in GivenchyMara arrives for the world premiere of Dragon Tattoo in London on Dec. 12 in a white cut-out Givenchy gown and Brian Atwood sandals. D Dipasupil / Getty ImagesRooney MaraMara wears a nude Calvin Klein Spring 2012 slip dress at the eighth annual CFDA/Vogue Fashion Fund Awards on Nov. 14 in New York.