Natalie Portman Talks 'Extreme' Sex Scene With Mila KunisNatalie Portman's portrayal of a tormented ballerina in Darren Aronovsky's upcoming film 'Black Swan' has many critics buzzing, but it's not just her twirling that has everyone talking.

The actress, who stars opposite Mila Kunis in the film, opened up to V Magazine about growing up on film and her much-discussed sex scene with Kunis.

Portman, who has previously shied away from overtly sexual roles and even turned down parts due to scripted nudity, says she has become more open in recent years to baring more than just her soul on film.

"I was figuring out my own sexual identity, likes and dislikes and all that stuff, and it's weird to be doing stuff on film as you're figuring it out," she says.

The actress, who is known for choosing tasteful-but-complex roles, says that she has no moral objections to being nude on screen, although she fears the potential for exploitation.