Angelina Jolie and Brad Pitt arrive at VH1's 14th Annual Critics' Choice Awards held at the Santa Monica Civic Auditorium on January 8, 2009 in Santa Monica, CA.
Steve Granitz/WireImage for VH1; Kevin Mazur/WireImage for VH1
Though they both did not take home any awards, the two did not seem to mind. A party attendee tells Us they were "kissing and looking lovingly at each other" throughout the night.
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Jolie even whispered to Pitt, "I miss you!" even though they were sitting right next to each other, the witness adds.
"At one point, Brad had his hand all the way up Angelina’s dress!" says the party attendee, adding that they kissed all night, even while chatting with other actors, including Mickey Rourke, Anne Hathaway and Slumdog Millionaire's Freida Pinto.
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Backstage, Jolie -- who is expected to walk the red carpet with Pitt at Sunday's Golden Globe Awards -- gushed about her beau's work in The Curious Case of Benjamin Button.
"Most of all I was charmed by him when he was younger," she said. "I was charmed by it. When I first saw the film, there were a lot of blue masks that they had to put on his face, so the first half I didn't see his acting inside the little guy. Then, when I saw him when he was young ... he is just so charming. I was really moved. I thought he was wonderful."
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As for their daughter Zahara's birthday (she turned 4 on Thursday)?
Laughing, Jolie said, "We are having a big girl party!"