Keira Knightley and Other Best Dressed Celebs of the Week

Roland Mouret's Fall 2011 Wemmick dress was Selma Blair's choice for the photocall for her film at the Venice Film Festival. The emerald green color was further accented by a gathered neck, pleated front and draped sleeves. Grey pumps by Salvatore Ferragamo finished off the look.

Image: Zimbio.com

Jennifer Morrison went old school at the premiere of her new film. Her Jacques Fath Haute Couture satin retro frock had gold and bronze embroidery. A belted waist added some definition to that full skirt.

Image: Zimbio.com

Kate Bosworth hit the festival's Opening Ceremony in a black Valentino silk chiffon number. The dress comes from the Fall 2011 collection and featured a belted bow accented waist. Her embellished clutch and snakeskin ankle strap pumps were also both by Valentino while those earrings are courtesy of JewelMint.

Image: Zimbio.com

Over in France at the 2011 Deauville Film Festival Opening Ceremony, Emma Stone donned a bronze-colored textured Roland Mouret Fall 2011 silk gown with a black obi belt. She carried an Alexander McQueen clutch and sported Neil Lane jewels as well as a pair of black cage Giuseppe Zanotti sandals.

Jessica Chastain also opted to go nude for the festival's Wilde Salome premiere. Her brocade Elie Saab Fall 2011 Couture backless gown had cap sleeves and lace embroidery. Jimmy Choo sandals polished off the look.

Image: WENN.com

Jessica Chastain also opted to go nude for the festival's Wilde Salome premiere. Her brocade Elie Saab Fall 2011 Couture backless gown had cap sleeves and lace embroidery. Jimmy Choo sandals polished off the look.

Image: WENN.com

Keira Knightley went with Valentino couture for the premiere of A Dangerous Method at the festival. The embroidered long sleeve gown is from the fashion house's Fall 2011 collection.

Image: WENN.com

Gwyneth was all about Prada while promoting Contagion at the Venice Film Festival. She looked elegant at the film's premiere in a blush pink organza gown with bow detail. Prada was also behind her Cipria Raso clutch and Vernice peep-toe platforms, while those yellow gold and diamond earrings were from Bulgari.

Gwyneth was all about Prada while promoting Contagion at the Venice Film Festival. She looked elegant at the film's premiere in a blush pink organza gown with bow detail. Prada was also behind her Cipria Raso clutch and Vernice peep-toe platforms, while those yellow gold and diamond earrings were from Bulgari.

The French actress once again showed her affection for Christian Dior at the New York premiere of her new film. Both her flashy floor-length gown and obscured footwear were by the infamous fashion house.

Image: Ivan Nikolov/WENN.com

The French actress once again showed her affection for Christian Dior at the New York premiere of her new film. Both her flashy floor-length gown and obscured footwear were by the infamous fashion house.

Image: Ivan Nikolov/WENN.com

An unlikely pairing of a McQ tartan wool puffball mini dress and a cropped biker jacket served as Emma Watson’s wardrobe for the GQ soiree. Christian Louboutin Pigalle Spikes 120 studded leather pumps helped dress up the ensemble for the red carpet.

Image: Lia Toby/WENN.com

The actress decided to forgo a dress in favor of this Roland Mouret Fall 2011 ensemble consisting of a violet Squeers carre top and Durbyfield wide-leg houndstooth trousers. Charlize tweaked this look from the runway opting to wear the tie halter top as a low-cut V-neck. Accessories included black suede Jimmy Choo sandals and a silver clutch.

Image: Daniel Deme/WENN.com

The actress decided to forgo a dress in favor of this Roland Mouret Fall 2011 ensemble consisting of a violet Squeers carre top and Durbyfield wide-leg houndstooth trousers. Charlize tweaked this look from the runway opting to wear the tie halter top as a low-cut V-neck. Accessories included black suede Jimmy Choo sandals and a silver clutch.

Image: Daniel Deme/WENN.com

Keira Knightley went with Valentino couture for the premiere of A Dangerous Method at the festival. The embroidered long sleeve gown is from the fashion house's Fall 2011 collection.

Image: WENN.com