[innerSpaceman]

Spoiler:

Leaving out the explaination of the Half Blood Prince was just plain loopy. It's the name of the movie, fer chrissake .... you can't just leave it out. There are tons and tons of people who see these movies but don't read the books.

I don't think the art direction continues in the same vein from the third movie, though I believe the production designer has been the same for many films, and his work was great in this one.

I also happen to think Daniel Radcliffe

Spoiler:

pretty much sucks as an actor, though his scenes under the influence of the felicitus potion were fantastic, and he has very adept comic timing. But as regular Harry, he's just kinda bleh.