We guess we should just proclaim Keira Knightley the queen of book-to-movie adaptations, since this is her third appearance on the list. The Duchess is based on a true story, and Knightley plays the famed Duchess of Devonshire, aka Georgina Spencer (yes, she was related to Princess Diana). Between engageing in love affairs and defying social convention, the duchess's life is nothing short of jaw-dropping.
Watch it now.