Marion Cotillard stepped up her game at the premiere of her movie 'Rust and Bone' on the second day of the Cannes Film Festival.
She wore a navy coloured, strapless velvet and tulle Christian Dior Couture ballgown with a sweetheart neckline and a belt.
It was dramatic but low-key because of the colour. Still, she looked chic and polished with a voluminous high bun which was adorned with a diamond accessory.
Image Source: justjared
