Sixth film in the Harry Potter film franchise, based on the series of books written by J.K. Rowling, about a boy wizard and his friends at Hogwarts School of Witchcraft and Wizardry. In Harry's sixth year at Hogwarts he receives a mysterious textbook and tries to retrieve a distant memory which will help to help bring down Voldemort, however things go tragically wrong. Released in 2009 and starring Daniel Radcliffe, Emma Watson, Rupert Grint, Alan Rickman, Evanna Lynch, Robbie Coltrane and Helena Bonham Carter. One of the most expensive films ever made, and the most expensive film in the Harry Potter film franchise.