THE DUCHESS

A historical drama starring Keira Knightley as Georgiana Cavendish, the Duchess of Devonshire, an 18th-century aristocrat who earned both scorn and adoration for her extravagant, free-thinking ways. Frustrated by her relationship with her husband, the Duchess falls for a politician and begins an affair that creates both gossip and heartbreak. Directed by Saul Dibb. Released by Paramount Vantage. Rated PG-13.