Natalie Portman and French choreographer Benjamin Millepied, have announced that they are engaged and expecting their first child.
The couple met on the set of her latest movie, "Black Swan", a film that has Portman tipped for an Oscar for her performance.
The 29-year-old actress has already been nominated for a Best Actress Golden Globe for her role in the film.
Black Swan is a dark psychological thriller in which Portman plays a New York ballerina obsessed with a ballet dancer rival.
Portman's financé, Millepied, was born in Bordeaux, France and is a principal dancer and choreographer at the New York City Ballet.
Black Swan is released in UK cinemas on 21 January 2011.