KATHERINE BIGELOW made Oscar history last night as she became the first woman to win Best Director.
She was awarded the prestigious accolade for war film The Hurt Locker, which then went on to win the Best Picture award.
She looked stunned as she collected the Academy Award, and described it as "the moment of a lifetime".
And just moments later she was back on stage again, this time joined by the cast and crew of The Hurt Locker after it was awarded Best Picture.
Tom Hanks, who presented the award, caused a stir when he announced it as the winner but didn't read out the Best Picture nominees beforehand.
The Hurt Locker won a total of six Oscars, including Best Original Screenplay and Best Sound Editing.
Just before, Sandra Bullock won Best Actress for her critically-acclaimed performance in The Blind Side.
On Saturday, she was given a Razzie Award for worst female performance in All About Steve, the first time a performer has won a Razzie and an Oscar in the same year.
She said the film was about all the "moms" who take care of children no matter where they came from" before praising her fellow nominees Gabourey Sidibe, Carey Mulligan and Meryl Streep, who she said is "a great kisser".
Jeff Bridges received a standing ovation on being awarded Best Actor for his role in Crazy Heart, his first Oscar out of five nominations. He called the acting business a "groovy profession" and thanked his co-stars for their "heart and soul".
Other big winners included Christoph Waltz, who scooped the Best Supporting Actor award for his role in Quentin Tarantino's Inglorious Basterds.
The Austrian actor was presented the Academy Award by last year's Best Supporting Actress winner Penelope Cruz, and joked that winning the accolade and meeting her was "double bingo".
Best Supporting Actress winner Mo'Nique, who won for her role in Precious, gave an emotional acceptance speech and thanked her Precious "family" and her husband.
Geoffrey Fletcher won another award for Precious, this time for Best Adapted Screenplay, while Disney Pixar's UP won Best Animated Feature, beating off competition from Fantastic Mr Fox, Coraline, The Princess and the Frog and The Secret of Kells.
Brit Sandy Powell was given the Oscar Best Costume Design for The Young Victoria, her third Oscar of her career and said: "I'm thrilled to be a winner at all but British winner, yes."
THE WINNERS IN FULL:
BEST PICTURE
The Hurt Locker
BEST DIRECTOR
Kathryn Bigelow (The Hurt Locker)
BEST ACTOR
Jeff Bridges (Crazy Heart)
BEST ACTRESS
Sandra Bullock (The Blind Side)
BEST SUPPORTING ACTOR
Christoph Waltz (Inglourious Basterds)
BEST SUPPORTING ACTRESS
Mo'Nique (Precious)
BEST FOREIGN LANGUAGE FILM
El Secreto de Sus Ojos - The Secret of Their Eyes (Argentina)
BEST ORIGINAL SCREENPLAY
Mark Boal (The Hurt Locker)
BEST ANIMATION
Up
BEST ADAPTED SCREENPLAY
Geoffrey Fletcher (Precious: Based on the Novel Push by Sapphire)
BEST ART DIRECTION
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BEST CINEMATOGRAPHY
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BEST SOUND MIXING
The Hurt Locker
BEST SOUND EDITING
The Hurt Locker
BEST ORIGINAL SONG
The Weary Kind (theme from Crazy Heart) from Crazy Heart by Ryan Bingham, T Bone Burnett
BEST ORIGINAL SCORE
Up (Michael Giacchino)
BEST COSTUMES
The Young Victoria
BEST DOCUMENTARY FEATURE
The Cove
BEST DOCUMENTARY SHORT
Music by Prudence
BEST FILM EDITING
The Hurt Locker
BEST MAKE-UP
Star Trek
BEST ANIMATED SHORT FILM
Logorama
BEST LIVE ACTION SHORT FILM
The New Tenants
BEST VISUAL EFFECTS
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