Princess of the Period Piece

The young British actress stars in "Atonement," which takes place during WWII.

Keira Knightley

Keira Knightley
Knightley
Knightley
Knightley
Knightley
Knightley
Knightley
Knightley
Knightley
Knightley arrives at the film's premiere at Disneyland in Anaheim, Calif., on June 24, 2006. Knightley acknowledged she was a bit skeptical at first about appearing in a movie that shared the same name as a Disney ride. (Chris Pizzello/AP Photo)
ABC News on Facebook