By SARAH FITZMAURICE and BAZ BAMIGBOYE
Bold and bright: Michelle Williams looked incredible in her tiered bright coral Louis Vuitton dress while Viola Davis who is also nominated for Best Actress in a Leading Role, looked incredible in a green dress by Vera Wang
The 84th Anual Academy Awards is now underway - and the stars are hitting the red carpet in their glamorous attire.
Early arrivals include E! hosts Giuliana Rancic and Maria Menounos, who looked stunning in their respective cream and green gowns.
Giuliana, 37, has endured a brave battle with breast cancer over the last few months, but is now on the road to recovery following a double mastectomy.
Dazzling: E! News host Giuliana Rancic dazzled in a full-length cream gown while her colleague from Extra, Maria Menounos, wowed in a green ensemble as the pair arrived at the Oscars in Hollywood this afternoon
The E! News host will be on hand to interview the A-list stars as they arrive. The glitzy event is being held Hollywood & Highland Center.
The Oscars is arguably the biggest and most glamorous event in Hollywood's award season.
Nominee George Clooney arrived on the red carpet looking dapper in an Armani suit but his accessory came in the form of Stacy Keibler who looked stunning in a golden gown by Marchesa, an outfit that resembled the award statues.
Black and gold: Academy Award nominee Jessica Chastain looked incredible in a flowing black gown with intricate gold detail by Alexander McQueen which she teamed with $2million worth of Harry Winston jewels
Simply Stunning: The Girl With The Dragon Tattoo star Rooney Mara looked incredible in a flowing white gown by Givenchy
Michelle Williams, who is nominated for Best Actress in a Leading Role stepped out onto carpet in a Louis Vuitton dress in a bright coral hue, which boasted tiered detail.
Speaking to Ryan Seacrest on the red carpet the My Week With Marilyn star admitted she knew little about the blonde bombshell before she took on the role.
But after much research she explained: 'She is smarter than you would imagine she was sadder than you would imagine.'
Berry nice: Bridesmaids star Maya Rudolph looked incredible in a grape coloured gown which boasted lace embellishment around the waist and on her sleeves
When she was asked who she looks up to Michelle returned a compliment paid to her by Kate Winslet. She said: 'I’m so crazy about her it’s the greatest compliment of my life. I feel like she has made the path and we are all following it.'
Academy Award nominee Jessica Chastain looked incredible in a flowing black gown with intricate gold detail by Alexander McQueen which she teamed with $2million worth of Harry Winston jewels.
Berenice Bejo, leading lady of silent film sensation The Artist, was another to add a first touch of glamour on the red carpet - and was sporting red hair.
Golden couple: Nominee George Clooney looked extremely dapper in his suit and had the perfect compliment on his arm, his girlfriend Stacy Keibler
Berenice, who stepped out in Elie Saab couture, told MailOnline: 'It's red for a film role. In fact for two film parts I have to have my hair red so it will be like this for a few weeks.'
Bejo, a best supporting actress contender, wore a figure hugging mint green beaded gown with a train, matched with emerald earrings.
She was escorted by husband Michel Hazanavicius who directed The Artist.
Red carpet glamour: Melissa McCarthy opted for powder pink, Missi Pyle stepped out in light aqua while Ellie Kemper stepped out glittering in sequins
Kenneth Branagh who walked the red carpet with wife Lindsay in Caroline Herrera, said he spent the day doing 'nice things' before attending the Oscar ceremony in Hollywood.
He told MailOnline: 'I took a nice walk on the beach, did a work out and had two cups of English breakfast tea'.
Branagh is in the Best Supporting Actor category for his portrayal of Laurence Olivier in My Week With Marilyn.
Shade of red: The Artist's Berenice Bejo, who is nominated for best supporting actress, stepped onto the carpet with her hair dyed red along with husband Michel Hazanavicius, who directed the film. Seen right, Star Trek's Zachary Quinto and writer-director J.C. Chandor
Fashion from every angle: Judy Greer showed off her optical illusion silver and black gown which looked great from every angle
Lovely ladies: Milla Jovovich turned heads in an asymmetrical white gown while Lara Spencer opted for an egg shell blue dress while Sarah Hyland donned regal purple
Doubleact: Maria posed with her co-presenter Mario Lopez while, right, James Cromwell and actress Anna Stuart were also among the early arrivals