Desc: 50 Greatest Harry Potter Moments: Directed by Chris Hill. With Robbie Coltrane, Craig Stevens, Daniel Radcliffe, Julie Walters. To mark the release two weeks ago of the eighth and final movie in the series, Robbie Coltrane narrates a countdown of the movie franchise's best moments. From Harry's first meeting with Ron and Hermione aboard the Hogwarts Express through to magical mysteries.