The model, who arrived at the premiere of Okja at the 70th annual Cannes Film Festival this evening, risked suffering a nip slip in the daring number.
Her best assets looked as though they could barely be contained in her boob-baring off-the-shoulder style.
Molly drew even more attention to her décolletage, which threatened to pop out of place, with a dazzling diamond choker.
Her floor-length dress featured a corset-style top that cinched in at the waist that perfectly highlighted her incredible figure.
While her chest took centre-stage, the blonde beauty kept her legs under wraps due to the full skirt.
The 43-year-old ensured all eyes were on her dress by carrying a small monochrome clutch bag and wore her locks in loose waves.
Molly wasn’t the only star at the premiere who almost spilled out of her dress.
Actress Aishwarya Rai Bachchan risked suffering a wardrobe malfunction as she squeezed into a head-turning Cinderella frock.
The stunning off-the-shoulder style and dangerously low-cut neckline meant her bust was impossible to miss.
Her jaw-dropping frock featured a large tulle skirt and corset-style top that was covered with silver sequins in a pretty floral design.
Aishwarya’s dark tresses were left in a sleek and chic down ‘do and she sported a slick of dark red lipstick and lashings of mascara.