Based on the controversial novel by Philippa Gregory, "The Other Boleyn Girl" is a fictionalised account of the life of Lady Mary Boleyn (Natascha McElhone) who becomes mistress to England's king, Henry VIII (Jared Harris), before being ousted by her younger sister, Anne (Jodhi May.) Mary leaves the Court to marry a commoner, but returns when Anne embarks on a reckless policy to save herself from ruin. An extraordinary tale of sex, passion and royal intrigue. This is the little-known story of Mary Boleyn who was mistress to King Henry VIII before he married her older sister, Anne. Inspired by Philippa Gregory's best selling novel, this film is about great families jockeying for position and using their daughters as pawns in a deadly game. Set during one of the most notorious periods in British regal history, it is a powerful narrative and at its heart is the relationship between two rivals - the Boleyn sisters.