Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Flat, Drab, Disappointing

Alfonso Cuaron has made a drab and disappointing film. Here is a classic example of a director mucking up a perfectly fine story. While of course it isn't possible to put every nuance of these books onscreen, Chris Columbus did a fine job with the first two. In this one, Cuaron reshuffled the Hogwarts grounds layout for no reason, ignored most of the secondary storylines even when they were extremely important to the story as a whole, failed to develop the new characters, and apparently told the actors to walk through their parts. After the first two wonderful Harry Potter movies, this was a big let-down.