The Duchess

The Duchess is a 2008 British costume drama film based on Amanda Foreman's best-selling biography of the 18th-century English aristocrat Georgiana Cavendish, Duchess of Devonshire. It was released in September 2008 in the UK. Originally to be directed by Susanne Bier, The Duchess was directed by Saul Dibb.

Set at the end of the eighteenth century, The Duchess is based on the life of Georgiana Cavendish, Duchess of Devonshire. While her beauty and charisma made her name, her extravagant tastes and appetite for gambling and love made her infamous. Married young to the older, distant Duke of Devonshire, who was blatantly unfaithful, Georgiana became a fashion icon, a doting mother, a shrewd political operator, intimate of ministers and princes, and darling of the common people. But at the core of the story is a desperate search for love. The film delves into Georgiana’s passionate and doomed affair with Earl Grey, the future Prime Minister, and the complex love triangle with her husband and her best friend, Lady Bess Foster.

Source: Wikipedia