And the Oscars go to...'The King's Speech' reigns at the 83rd Academy Awards, winning in four of the biggest categories.

Widely regarded as the most glamorous awards ceremony in the world, the Oscars took place last night in Los Angeles' Kodak Theatre.

'The King's Speech' picked up the awards for Best Picture, Best Actor for Colin Firth, Best Director for Tom Hooper and Best Original Screenplay for David Seidler.

Firth told the audience: "I have a feeling my career has just peaked. My deepest thanks to the academy. I'm afraid I have to warn you that I'm experiencing stirrings somewhere in the upper abdominals which are threatening to form themselves into dance moves which joyous as they may be for me, it would be extremely problematic if they make it to my legs before I get off stage."

Firth thanked his fans, paying tribute to "all the people who have been rooting for me back home" and thanked his wife whom he said had put up with his "fleeting delusions of royalty".

Check out the shots from the red carpet here.

Natalie Portman won the Best Actress award for 'Black Swan', with Melissa Leo winning Best Supporting Actress for her role in 'The Fighter'.

Portman tearfully paid tribute to the other actresses in her category saying she wished "the prize tonight was to get to work with my fellow nominees". She also spoke about the father of her unborn child, Benjamin Millepied, who she said had given her the "most important role of my life".

Leo's co-star Christian Bale also picked up his first Oscar, winning Best Supporting Actor for his performance as Dickie Eklund in 'The Fighter'.

Unfortunately, Irish hopeful Michael Creagh's film 'The Crush' lost out in the Short Live Action category, with the Oscar going to Luke Matheny's 'God of Love'.

'Toy Story 3' was named Best Animated Film, while 'Inside Job' won the award for Best Documentary Feature.

Also winning four awards in Hollywood last night was 'Inception', which won Best Cinematography, Sound Editing, Sound Mixing and Visual Effects.

David Fincher's 'The Social Network' won three awards for Best Adapted Screenplay, Film Editing and Original Score.

The Oscar for Makeup went to 'The Wolfman' which starred Benicio del Toro and was presented by Cate Blanchett while the Costume Design award went to previous two-time winner Colleen Atwood for 'Alice in Wonderland'.

Best film - The King's Speech

Best actor - Colin Firth, The King's Speech

Best supporting actor - Christian Bale, The Fighter

Best actress - Natalie Portman, Black Swan

Best supporting actress - Melissa Leo, The Fighter

Best director - Tom Hooper, The King's Speech

Best documentary feature - Inside Job

Best adapted screenplay - Aaron Sorkin, The Social Network

Best original screenplay - David Seidler, The King's Speech

Best Song - We Belong Together, Toy Story 3, Randy Newman

Best Editing - The Social Network, Angus Wall and Kirk Baxter

Best Visual Effects - Inception, Paul Franklin, Chris Corbould, Andrew Lockley and Peter Bebb

Best Live Action Short - God of Love, Luke Matheny

Best Documentary Short - Strangers No More, Karen Goodman and Kirk Simon

Best Costume Design - Alice in Wonderland, Colleen Atwood

Best Makeup - The Wolfman, Rick Baker and Dave Elsey

Best Original Score - The Social Network, Trent Reznor and Atticus Ross

Best Foreign Language Film - In a Better World (Denmark)

Best Animated Film - Toy Story 3

Best Cinematography - Inception, Wally Pfister

Best Art Direction - Alice in Wonderland, Robert Stromberg, Karen O’Hara