Page was up against Jolie's A Mighty Heart performance and took everything in stride.
"I'm just trying to go along with it, staying with a friend, having fun," Page told PEOPLE of Oscar weekend. "Just trying to remove myself in a way, and remember it's about film ... These nominations are a huge honor. It's exciting."
Page, wearing a Yohji Yamamato jacket and shirt on the blue carpet, is having a big week. Not only did the film also win top honors, she's nominated for the Best Actress Oscar Sunday and celebrated her 21st birthday Thursday.
"I played running charades and drank tequila," Page said backstage of her milestone celebration. "I had never tasted liquor before – what a funny, sharp taste."
Jolie came with Brad Pitt, who co-produced the film. They did not do interviews on the carpet – though Jolie spoke volumes with a bump accentuated by her form-fitting black dress. And a source close to the couple told PEOPLE that they are "thrilled to be adding to their brood."
Dedication to HeathCate Blanchett won best supporting actress for her turn as Bob Dylan in I'm Not There, while Phillip Seymour Hoffman won best actor for The Savages, and Chiwetel Ejiofor won best supporting actor for Talk to Me.
Blanchett, who is expecting a baby in April, wore a flowy Vera Wang dress. She told PEOPLE she looked for a dress that was "something stretchy."
She also paid tribute to her I'm Not There costar Heath Ledger, much like at the Santa Barbara International Film Festival. "This is for him," Blanchett said, to applause.