01/16/2011 05:12 am ET Updated May 25, 2011

Natalie Portman: Sex Scene With Mila Kunis Was 'Extreme'

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.

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