Mila Kunis' baby bump was her cutest accessory on the red carpet on Monday night.

Mila Kunis & Ashton Kutcher Show Some PDA in Instagram Photo 

The 30-year-old sported a little black dress at the premiere of her new film, Third Person, held at the Linwood Dunn Theater in Hollywood. Kunis posed for photos with her co-stars Maria Bello and Moran Atias, as well as director Paul Haggis, to promote the film coming to theaters on June 20.

In the movie, Kunis plays a mother fighting to see her son after she's accused of trying to murder him. In the meantime, her son's father, played by James Franco, wants sole custody.

Ashton Kutcher On Charlie Sheen: 'Dude, Shut The F--k Up' 

Although fiancé Ashton Kutcher wasn't present, the duo was spotted over the weekend getting some dessert. They were even photographed sharing a kiss after they left Menchie's Frozen Yogurt in Sherman Oaks, Calif. on Saturday. (View the photos here.)

News of Kunis' pregnancy broke in March, one month after it was revealed that she was engaged to the Two and a Half Men star.

"They are both beyond ready to be parents," a source close to Kutcher told People magazine at the time. "They've been talking about having children for nearly a year. They are so excited for that next step."

The parents-to-be, who co-starred on That '70s Show and began dating in 2012, have yet to reveal their baby's due date. They are reportedly expecting a baby girl.

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