Natalie Portman:Engaged and Pregnant!(photos)

Natalie Portman and choreographer Benjamin Millepied are engaged and expecting their first child, her reps confirm to PEOPLE exclusively.

The couple met during the production of Black Swan. Portman's performance in the film has earned her nominations for a Golden Globe and Screen Actors Guild Award.

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The actress, 29, will next be seen in the romantic comedy, No Strings Attached, costarring Ashton Kutcher.

This will be the first child for the actress who is due in 2011