Marisa Tomei and Other Best Dressed Celebs of the Week

It was a golden mustard one-shoulder Viktor & Rolf Resort 2012 dress with black belt for Jessica at the premiere of Coriolanus at the Elgin Theatre. She also wore jewelry by Jack Vartanian.

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Keira made last week's list in a dramatic nude Valentino and she returns for this edition thanks to the Elie Saab Fall 2011 Couture dress she donned in Toronto at the premiere of A Dangerous Method. This backless lace cocktail number was partnered with Miu Miu shoes.

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Nude-toned Valentino dresses have been everywhere on the red carpet recently. Freida adhered to the trend at the premiere of Trishna with this sequined halter style number from the Resort 2012 collection. Jimmy Choo peep-toes, Mark Lash jewels and a Roger Vivier gold clutch completed the look.

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Naomi opted for a fun printed Cacharel Fall 2011 number for a photocall during the French festival. Sensational Aperlai pumps amped up the ensemble.

Kirsten transformed a Prada blouse and Chanel skirt into a sophisticated ensemble for the festival's premiere of her new film, Melancholia. The navy V-neck top featured white polka dots which tied in nicely with that long white skirt and Kirsten rounded out the look in a pair of silver embellished pumps.

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Sarah finally brought the promotional tour for her latest film back stateside. Her black crochet Antonio Berardi dress was styled with a Charlotte Olympia bag, a ring by Richard Poillot Rivas, Fred Leighton earrings and black Manolo Blahnik pointy pumps.

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Fashion sense must run in the Olsen family since Mary-Kate and Ashley's younger sister has been making some stellar choices lately. The actress attended the Martha Marcy May Marlene premiere up in Toronto in a colorful floral Erdem Resort 2012 maxi dress with keyhole cut out detail. Salvatore Ferragamo's Swarovski crystal encrusted minaudi

Ashley demonstrated how white can successfully be worn after Labor Day when she hit the premiere of her film Butter at the festival. Her sequined silk chiffon Oscar de la Renta Resort 2012 dress was combined with a metallic belt, velvet Salvatore Ferragamo point toe pumps, Irit Design jewelry and a Swarovski minaudi

Eva had several wardrobe changes when she co-hosted the awards alongside George Lopez. This coral Oscar de la Renta Resort 2012 draped gown really stole the show, though. From her high bun to the gown's impressive train, the Desperate Housewives star was elegance personified.

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Marisa relied on Proenza Schouler's Fall 2011 collection for the festival's premiere of The Ides Of March. This multi-metallic Navajo print dress was complemented by satin sandals with back zigzag accent both from the brand’s Fall line as well as a Stark leather and Swarovski crystal box clutch.

Image: Dominic Chan/ WENN.com