With Harry's fifth return to Hogwarts comes the realisation that Voldemort's return to power is not the only factor that will trouble him and he is forced to confront a different force that matches his growing pains. Rowling's most complex and uneven book has proven to be the most difficult to adapt. Missing the talents of a big name director this still contains some enjoyable moments courtesy of newcomer Imelda Staunton, playing the latest Defence Against the Dark Arts teacher. Sadly exposition over action is this film's real undoing.