Natalie Portman reveals baby bump at Venice Film Festival

Actress Natalie Portman attends the premiere of 'Planetarium' during the 73rd Venice Film Festival at Sala Grande on September 8, 2016 in Venice, Italy.

VENICE — Actress Natalie Portman is expecting her second child, and debuted her baby bump at the Venice Film Festival Thursday.

Dazzling in an elegant white Dior gown, Portman, 35, was all smiles as she walked the red carpet, acording to the Entertainment Tonight report.

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Portman was at the Venice Film Festival to promote her new film, "Planetarium."

Portman and husband Benjamin Millepied have a 5-year-old son, Aleph.