Marion Cotillard stayed true to her Gallic roots for the premiere of her film ‘Rust & Bone’ at the Toronto Film Festival last night.

The French actress chose a grey Christian Dior Couture piece from the Fall 2012 collection for the event.

The neckline works well on Marion, as does the demure length. The blink-and-you’ll-miss-it nod to a peplum also adds an interesting detail.

She finished off her look with blue heels, a gold cuff and a sleek side-swept updo.