Taking to the red carpet, the US beauty was happy to flaunt her post-baby body, just four months after giving birth to her daughter, Wyatt Isabelle Kutcher.
Looking every inch the VIP, Mila wowed at the event in a beautiful black strapless gown. Her dress oozed Hollywood glamour, featuring a fitted bodice and full circle skirt.
To finish off her outfit, the starlet wore a pair of lace cut-out heels on her feet and a pretty stone necklace around her neck.
Dazzling on the beauty front too, Mila swept her long dark locks over to the side, styling her tresses in loose curls and sporting flawless make-up.
Totally gorgeous, right?!
On the night, Mila was joined by her co-stars Eddie Redmayne and Channing Tatum.
Mila's appearance on the red carpet comes after she and fiancé Ashton Kutcher welcomed their daughter Wyatt back in October.
Since then the 31-year-old has taken a break from work to spend time with her baby girl.
Opening up about motherhood, Mila admitted she feels "blessed" to be able to be a stay-at-home mum.
Speaking to Craig Ferguson, she said: "I am able to be at home for my kid and some people can't do that. I was able to take time off and raise my child and that's a blessing."
Although Mila did joke when Wyatt hits her teenage years, she'll become "daddy's problem"!
Meanwhile, Ashton has gushed about his other half, claiming Mila is "perfect" when it comes to being a mum.
"The most amazing thing about having a baby is my partner, Mila," he told Ellen DeGeneres. "She's the greatest mum... I can't even... I go to work every day and I come home and she's, like, perfect."
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