The couple have a year-old son, Aleph.
Portman and Millepied met while shooting the film Black Swan, for which she won the Academy Award, Golden Globe Award, and numerous other honors. She has starred on Broadway in The Diary of Anne Frank and in the Shakespeare in the Park production of The Seagull.
Millepied recently choreographed the Broadway-bound musical Hands on a Hardbody at the La Jolla Playhouse. A former dancer with New York City Ballet, he has choreographed works for the company, as well as American Ballet Theatre, Paris Opera Ballet, and numeous other companies.