Our pals over at UK Fabsugar have uncovered this little gem of a video, which looks at the costumes of Keira Knightley's new film, The Duchess. It features Knightley and fellow castmate, Hayley Atwell (who plays Bess Foster), sharing their thoughts on what it was like to wear corsets and wigs for their roles in the film. You can also check out a few of the costume sketches by designer Michael O'Connor by clicking here.