The wig Keira Knightley donned in new movie The Duchess was so heavy; she needed a special headrest to support her neck.

The 23-year-old plays an aristocrat in the forthcoming 18th-century drama and had to wear a heavy wig as part of her elaborate period costume. And the hairpiece was so massive, the film crew created a custom resting post to take the weight off the slender star's shoulders.

Knightley's co-star Hayley Atwell recalls, "I loved filming The Duchess - Keira has a great sense of humor. She had to wear this huge wig that was so heavy they made her a board that she could lean her shoulders and head against in between takes so she didn't topple over or get neck aches."


-Check out "The Duchess" Video
-More Keira Knightley Pictures
-Check out Keira Knightley's Filmography

(This news article provided by World Entertainment News Network)