Natalie Portman is known in Hollywood for choosing her roles with care. And up until 'No Strings Attached,' the 29-year-old has largely avoided anything that could be considered a "chick flick."

"I've always wanted to do [a romantic comedy]," she tells "But the girls are always in fashion, and it's always about their clothes. They always want to get married at the end. There's some kind of makeover scene. That stuff offends me."

But Portman says her new film with co-star Ashton Kutcher is an intelligent, female perspective on the played out girl-falls-head-over-heels-for-guy cliche. "My character is a woman who's working, who's trying to create her own construct for relationships, who's funny herself -- and isn't just the girlfriend of a funny guy," she says.

In 'No Strings Attached', Portman plays a doctor who chooses to have a sex-only relationship with Kutcher's character, a TV writer. The actress says the movie's screenwriter Liz Meriwether "writes women so specifically and smartly."