14. Alfonso CuarÃ³n had his three lead actors write an essay about their characters
Before the filming of the third film, Harry Potter and the Prisoner of Azkaban, director Alfonso CuarÃ³n had his three lead actors write an essay about their characters from a first-person point of view. In true Hermione fashion, Emma Watson wrote a 16-page essay. Daniel Radcliffe wrote a concise one-page summary while Rupert Grint apparently never turned his in.