Actress Natalie Portman debuted a baby bump on the red carpet for hew new film Planetarium at the Venice Film Festival.

It had previously been reported that the Black Swan star was expecting her second child with husband Benjamin Millepied. The couple are already parents to five-year-old son Aleph.

The 35-year-old actress has not publicly confirmed the news.

Portman's burgeoning baby bump was visible at the premiere of her new film, where she wore a figure-hugging Dior couture white gown with a flowing train.

Portman appears to debut baby bump at the Venice Film Festival

The couple met on the set of Black Swan, for which Millepied was the choreographer, and wed in 2012 in a secret ceremony in California. 

When Portman accepted the Best Actress Oscar for her performance in Darren Aronofsky's film she thanked her husband for giving her "the most important role of [her] life."

Natalie Portman and husband Benjamin Millepied expecting second baby together