Hollywood's celebs turned out in force for the 2010 Academy Awards, nicknamed the Oscars. Zac Efron flashed the waiting photographers a grin.
Zac's High School Musical girlfriend Vanessa Hudgens also took a turn on the red carpet at the Oscar ceremony.
Sandra Bullock won Best Actress for her role in The Blind Side. It was the first time Sandra has ever been nominated for an Oscar.
Here's a close up of Sandra Bullock's Oscar - it's super shiny!
You may not recognise her because she's behind the camera, but Kathryn Bigelow is the first woman ever to win Best Director at the Oscars.
This is the moment that Avatar won the Achievement in Cinematography award. The 3D spectacular won three Oscars, all of them in technical categories.
Jeff Bridges won the Best Actor award at the 82nd annual Oscars.
Can you guess which film this guy is holding an Oscar for, from his hand signal? Yup! It's UP, and it won Best Animation. This is its director Pete Docter.
Will.i.am was another celeb who turned up to America's most talked about awards show of the year.