This film covers the first half of the last book in the Harry Potter series. As such, it is a very dark tale, full of physical and psychological torture, death, and despair. Its few happy moments are tempered by the sense of impending doom. It breaks free of the standard Potter formula of starting each school year at Hogwarts, opting instead for Harry and friends' flight from the forces of Voldemort. This film is far too intense for young children; I'm honestly surprised it managed to keep a PG-13 rating.
The movie was very well done; beautifully filmed, excellent special effects, music which intensified each scene. The cast has grown admirably in skill over the past decade, with the main three cast members especially standing out--as well they should, since the burden of carrying the emotion of the story fell on their shoulders. The "Deathly Hallows" interlude was very well animated, bringing to mind "A Nightmare Before Christmas" in its stylized designs. The movie was a perfect illustration of despair; as such, I wouldn't recommend showing it to anyone younger than seventeen.