To date, I've enjoyed all the HP movies, I think a large part of the success goes in having such good casting and that the movies are becoming far darker, more adult, more violent is such a natural progression.... harry as the flawed hero
Funnily enough, while I agree that the books are generally the better medium for telling a story, in this instance I've found the films to be more engaging, (try as I might, the first HP book put me off, Perhaps I was reading an abridged for kids version)