Rachel Bilson jumped at the chance to star in a three-part short film series directed by the legendary Chanel designer for Magnum ice cream, which is launching in the United States.
"I was like, I'm working with Karl Lagerfeld. I could be doing something, like, really ridiculous and in, like, a big clown suit. It wouldn't matter," she said.
Bilson, 29, best known for her role on "The OC," has also gained recognition for her sense of style and writes a column about fashion for In Style magazine. For Thursday night's premiere for the ads at the Tribeca Film Festival, she wore a Chanel dress and carried a Chanel clutch.
"I was very young when I knew that I was into fashion," Bilson said. She said she insisted on picking her own outfits at the age of 2.
"It was a young marriage between me and clothing," she joked.
For the ads, Bilson was the right actress, Lagerfeld said.
"Rachel is great, you know," he said. "She's a very good actress. She can play with her face without even saying one word. It was an easy job. The company told her what they wanted and the spirit and she adapted."
Bilson recently shot a TV pilot, "Hart of Dixie," for the CW network. The show's executive producer is Josh Schwartz, who created "The OC." The CW hasn't announced yet whether the show will be picked up for the 2011 fall TV season.
Shooting the pilot was "so much fun," Bilson said.
The show is "really funny and quirky, but it has a lot of heart," she said.
Associated Press writer Dana Schimmel contributed to this report.