Watch Keira Knightley star as Coco Chanel

Storied fashion house Chanel is releasing a short film called Once Upon a Time...

Keira Knightley, the running top muse of the Parisian couturier, stars as Coco. French actress Clotilde Hesme, and models Lindsey Wixon and Stella Tennant also will appear in the film. The short, directed by Chanel creative director Karl Lagerfeld, will premiere on May 8. Watch the teaser below.