updated 12/27/2010 AT 1:15 PM ET
•originally published 12/27/2010 AT 11:30 AM ET
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.