Natalie Portman Talks Working with "Flexible" Boyfriend Benjamin Millepied

NEW YORK (CBS) Along with a lean and poised dancer's body, Natalie Portman landed a new beau while filming the psychological thriller "Black Swan."

The 29-year-old actress, who plays prima ballerina Nina Sayers in the Darren Aronofsky film, reportedly became romantically linked with the film's choreographer Benjamin Millepied, 32, a New York City Ballet principal dancer, while training for the film.

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Portman and Millepied, who also has a small role in the movie, are often photographed in Los Angeles and were first spotted together at a New Year's Eve party in New York City's TriBeCa neighborhood, according to the New York Post.

Portman, who is generating Oscar buzz and recently received a 2010 Independent Spirit Awards nomination for her role, spoke highly of Millepied's "creativity and intelligence" to People magazine at the film's premiere at New York's Ziegfeld Theatre Tuesday.

"He knows how to change when things aren't working well," Portman said. "Sometimes I just couldn't do something. No matter how hard I worked, I couldn't do it. He would fix it to make it something that I could do."

"He was really flexible. Working with film and working with actors rather than dancers, that flexibility was key," she added.

"Black Swan" opens on Friday in New York and Los Angeles.