Alan Rickman steals the show in HBP. I would not recomend seeing this movie if you have not read the book; it would be incredibly hard to follow. As always, the book is better.
Having said that the movie is non stop action with and a jolt that drew gasps from the packed theater I was in, even though most people knew it was coming; and no i'm not talking about the end. If you don't at least hop in your seat a little you have great nerves.
A must see in the theater as the special effects and movie score were fabulous. Don't come late to this one or you will miss some of the best special effects in the movie.