Christ Church is one of the largest constituent colleges of the University of Oxford. As well as being a college, Christ Church is also the cathedral church of the diocese of Oxford, the Christ Church Cathedral. It has a financial endowment of around £250m.The college has produced thirteen British prime ministers, more than any other Oxford or Cambridge college. It is the setting for parts of Evelyn Waugh's Brideshead Revisited, and Lewis Carroll's Alice's Adventures in Wonderland. More recently it has been used in the filming of the movie of J. K. Rowling's Harry Potter series.