According to Us Weekly, the 31-year-old Hollywood star and her 35-year-old French dancer/choreographer beau made it official in a Jewish ceremony at a private home near Big Sur in California. The 8 p.m. wedding took place beneath a chuppah, in the dark.
A source told the magazine that Macaulay Culkin was among the 100 guests at the wedding.
Portman and Millepied were rumored to have married secretly back in February after they were spotted wearing bands on their ring fingers at the Academy Awards.
Back in December of 2010, Portman confirmed that she was not only engaged to, but pregnant with the child of her Black Swan choreographer and co-star, whom she met on the set of the film that earned her an Academy Award. The couple had their first child together in June of 2011: baby boy Aleph, who is named after the first letter of the Hebrew alphabet.
Prior to winning her Oscar, Portman memorably thanked Millepied during her Golden Globes acceptance speech, saying, "Benjamin choreographed the film, and also you might remember him in the movie as the guy when they ask, 'Would you sleep with that girl?' And he's like, 'Pffsh, no.' He's the best actor. It's not true: He totally wants to sleep with me!"