EXCLUSIVE: Read it here first...

Owen Wilson's Night Out in Hollywood

Thu., Feb. 21, 2008 1:19 PM PST by Marc Malkin

Dimitrios Kambouris/WireImage.com

Not only has he just signed on to star in a romantic comedy opposite Jennifer Aniston, but last night he hit the Chateau Marmont in West Hollywood for a blowout bash thrown for about 600 people by French businessman Nicolas Berggruen.

Wilson, dressed casually in a flannel shirt, arrived with a blond woman around 11:30, when the bash was already in full force. As he walked into the lobby, two more women joined him.

Partygoers embraced Wilson—literally. Los Angeles Confidential magazine publisher Jason Binn gave him a bear hug, as did several women. Rebecca De Mornay squealed with delight when she spotted him. “Ooowen, how are you?” she cooed in his ear as she wrapped her arms around him. At one point, he and a woman playfully bantered about the fruit on a stick Wilson was eating. “Want some?” Wilson said, before feeding her a piece of honeydew.

Wilson also hung out at the bash with his pals Woody Harrelson and Entourage star Adrian Grenier. He stayed around until about 1 a.m, but I’m told he asked that his photo not be taken (that's an old photo you see above).

Kevin Mazur/WireImage.com

Other boldfaced names who crammed into the lobby and garden area included Matthew Perry, Jamie-Lynn Sigler, Daryl Hannah, Tom Arnold, Shane West, Linda Evangelista and her Hard Rock Cafe cocreator boyfriend Peter Morton, Russell Simmons, Joan Collins, industry heavyweights Harvey Weinstein and Ben Silverman, art gallery mogul Larry Gagosian and a flock of socialites including Jamie Tisch, Brooke Davenport, Julia Sorkin and Kelly Katz.

Paris Hilton, of course, was there, and she didn’t disappoint when it came time to leave. Before walking toward a curbside throng of paparazzi, she made sure she was camera-ready by ducking into the garage for a touch-up.

“She had her compact out,” an onlooker reported with a laugh. “She did her makeup and fixed and flipped her hair. Seriously, she had to be doing that for a full eight minutes. She could have had her driver pull into the garage, but no, she’s Paris. She just had to have her photo taken.”