11/03/2011 07:08 GMT | Updated 22/05/2015 06:12 BST

Chanel's Superwoman: Keira Knightley

Keira Knightley may be the next Tinkerbell, but she's also playing "Superwoman" - for Karl Lagerfeld at least.

The star and face of Chanel's Coco Mademoiselle fragrance plays a Chanel-clad biker babe in the latest video campaign for the scent. In the just-released video-tease, Knightley talks about filming the new advert:

"Nobody said exactly what it was going to be like," she says. "I knew that it was something about a motorbike, and I knew it was going to be beige, and they said: 'sort of catsuit.'"

"It was completely unexpected," she continues. "It's a Chanel superwoman I think."

The advert, which will hit TV and cinema screens on 21st March, was directed by Joe Wright, who's worked with Knightley on both Pride & Prejudice and Atonement, reports The Telegraph.

She certainly does look super - we can't wait to see the final product.