The actress graced the red carpet at the 2024 Cannes Film Festival. Sienna Miller, who stars in Kevin Costner’s western “Horizons: Part 1,” attended the film’s premiere accompanied by her boyfriend, Oli Green, and their 11-year-old daughter, Marlowe. Six months ago, Miller welcomed her second daughter with Green, though she has kept the baby’s name private.

At the premiere, Sienna dazzled in a delicate blue layered dress made of flowing fabric. The unique design of the Niagara-colored dress showcased her slender legs while subtly concealing her figure, which the actress prefers to keep private after giving birth. However, the sheer chiffon material left little to the imagination when it came to the neckline. The romantic and feminine outfit, paired with silver rhinestone-embellished sandals, was a departure from her edgier look in a black biker jacket at the Vogue show in London earlier this year.

Marlowe, Miller’s 11-year-old daughter, stole the spotlight as she confidently posed for the cameras, smiling widely, waving to guests, and striking various poses. She seemed to relish the attention and the glamour of the event. For the premiere, Marlowe chose a short, soft pink A-line dress adorned with a large flower at the waist, highlighting her slim figure. With her poise and style, it’s clear she has the potential to pursue a modeling career and could soon become a trendsetter at social events.

This was not Miller’s first public appearance since giving birth to her second child. She made her debut two months postpartum, after initially keeping her pregnancy a secret. Once paparazzi photos revealed her baby bump, Miller embraced her pregnancy publicly, often showcasing her growing belly in stylish outfits. The actress’s second daughter’s birth was reported in early January this year.