Bride-to-be Keira Knightley is reportedly set to walk down the aisle in a custom made gown by Chanel's head designer, Karl Lagerfeld.

The Atonement beauty will marry her rocker beau James Righton near Nice in the South of France this weekend (04-05May13), and she is said to have used her connections as the face of the fashion house's Coco Mademoiselle perfume to land a wedding dress by the design icon himself.

Knightley and Lagerfeld are no strangers - they have previously collaborated on a commercial for Chanel and a short film.