The twice Oscar-nominated Moore has appeared in films like "Hannibal," "Boogie Nights" and "The Big Lebowski." Next month "The Shipping News," co-starring Kevin Spacey, Judi Dench and Cate Blanchett, hits theaters.

Moore breaks a big name dry spell for Revlon. Since it split from longtime rep Cindy Crawford last year, the company hasn't brought on any major stars, though it has retained the famous faces of Halle Berry and Karen Duffy.

Revlon Executive Vice-President of Marketing Cheryl Vitali cautions though that Moore won't be the first of a slew of stars signing up with the brand. "She is one of the biggest people we've signed in a long time, but we don't have plans to hire another ten celebrities," Vitali told us. She added, "the ones we do have we want to strongly relate to our brand."

Vitali sees Moore as ideal for Revlon because in addition to being "gorgeous and colorful," she's very well-liked. "She's a woman women love."

And likewise, she loves women and their causes. Moore will not only appear in Revlon advertising campaigns -- her first commercial will air in January -- but she will also play a part in philanthropic efforts in the fight against breast and ovarian cancers. "I have always admired [Revlon's] dedication to women's health issues and their long-standing position as a truly iconic American beauty company," the actress said.

Moore is expecting her second child with director Bart Freundlich this spring. Son Caleb is almost four.