Sienna Miller outshone BAFTA nominees Keira Knightley and Julie Christie as Hollywood's finest arrived for tonight's BAFTAS awards ceremony in London.
Knightley and Christie were both up for the Best Actress award but lost out to French actress Marion Cotillard.
Actor Daniel Day Lewis - who won Best Actor for There Will Be Blood - attended the ceremony along with fellow Best Actor nominee James McAvoy, Orlando Bloom, Daniel Radcliffe and Kevin Spacey.
Sienna was wearing an eyecatching necklace around her back
Keira Knightley arrives at the bash, she lost out to Marion Cotillard for the Best Actress award
Actress Eva Green on the red carpet (left), Best Actress nominee Julie Christie at the awards
Unlike previous years, where the rain has turned the red carpet into a soggy mess, the nominees were able to show off their frocks without getting drenched this time.
The glittering event ceremony saw Atonement, starring Knightley and Scottish actor James McAvoy, competing for 14 awards while other films in the running include There Will Be Blood and the Coen brothers' thriller No Country For Old Men.
Among those who graced the red carpet - which took three hours to roll out this morning - were Ricky Gervais, British actress Emily Blunt, Kevin Spacey, Jeff Goldblum and Tilda Swinton.
All smiles: Sienna shares a joke with boyfriend Rhys Ifans
British actress Thandie Newton (right) and Hollywood star Jessica Biel
GMTV presenter Jenni Falconer arrives at the ceremony (left), Myleene Klass reports from the Bafta red carpet at the Royal Opera House in London's Covent Garden
Actresses Emily Blunt (left) and Rosamund Pike on the red carpet
One of the most dramatic outfits of the evening was worn by Tilda Swinton (left), Samantha Morton looked voluptuous in a Stella McCartney grey column dress
Hundreds of film fans waited outside the Royal Opera House in London's Covent Garden to catch a glimpse of the stars.
Knightley, who was nominated for leading actress for Atonement, kept the February chills away by wearing a blue jacket over a tiered grey Valentino couture strapless gown.
She said: "I don't know how many awards we are going to win but I'm so excited the film has 14 nominations.
"I'm not going to say I'm confident about winning (best actress) because there are some really amazing inspiring performances.
"Marion Cotillard is my hero at the moment. She's amazing in La Vie En Rose."
Ricky Gervais arrives on the red carpet with wife Jane Fallon
Hollywood actress Kate Hudson shimmers in gold on the red carpet
French actress Marion Cotillard won Best Actress for her role in La Vie En Rose
Actor David Benioff and Amanda Peet arrive for the 2008 Orange British Academy Film Awards
Director Ridley Scott and wife Giannina Facio pose for photographers
She added: "It's cold so I'm wearing this jacket but I've been told that I have to take it off in a moment which I'm a bit p****d off about.
"I've been doing DIY recently, but not today, and re-grouting the bathroom. I have only just started and I don't think I like it. I think I'm making a mess."
Hollywood star Hudson looked stunning on the red carpet in a gold sequinned Dior dress and shoes and Bulgvari jewellery.
The actress, who was presenting an award, said: "It's my second time here and I think last time it was raining."
British actress Blunt, who was also presenting a gong said: "This is down to my stylist. I live in jeans and Ugg boots normally and she picked me out these stone jewels.
Asked about the crowds at the Baftas, she added: "It's insane, the Brits are definitely a rowdier bunch.
"It's a really classy event and the people who deserve to win it usually do."
Harry Potter star Radcliffe got one of the biggest cheers of the night from the crowd.
The actor presented an award. He said: "I'm very excited. I've never been to the Bafta's before. This is great, even better than the Oscars because it's British.
"I'm so excited about all these amazing people that turn up."
Asked about walking down the red carpet, he added: "If anything it gets more scary, particularly this time when there are all these amazing people. It's a big night.
McAvoy who was up for leading actor for Atonement but lost out to Daniel Day Lewis arrived with his actress wife Anne-Marie Duff.
He said: "It's a nice thing to come to. I'm confident for Atonement but it will be nice if some of the awards are shared out because there are a lot of intelligent films this year."
Best actress winner Marion Cotillard wore a silver sequined cocktail dress with a flowing white chiffon train.
American actor Cuba Gooding Jr, who was also presenting an award, said: "It's the first time I've been to the British Academy Awards. It's easier to go to this kind of thing when you're not nominated, otherwise it just draws you in."
One of the most dramatic outfits of the evening was worn by Tilda Swinton. She wore Couture Dior with a mustard green dress and matching jacket covered in black maple leaf shapes.
Samantha Morton looked voluptuous in a Stella McCartney grey column dress with a large Chopard she said: "Stella
McCartney very kindly made a dress for me, for some reason I'm really enjoying the awards this year."
Also walking the red carpet was actress Emily Blunt who wore a one-shouldered green sequined dress with impressive diamonds by H Stern.
She said: "British award ceremonies or so different from the American ones, I think that the British shout louder and are a bit more excitable.
The ceremony, which is also being screened in the US, was more starry than usual after the Hollywood writers' strike hit the Golden Globes last month.
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