The effects and stuff was pretty good, but I must declare myself extremely disappointed with the music. Throughout the movie, I believe I heard Hedwig's Theme once or twice, and the other signature Harry Potter songs were nonexistent. The only other recognizable music was in Weasley's Wizard Wheezes, and that was only in The Order of the Phoenix. Also, they added an unnecessary scene, and took out key things. Anyone who hadn't read the book came out of the theater very confused.