Interesting theories...the Wormtongue/Lupin thing makes sense, it's probably not by chance that Rowling had Voldemort give him a silver arm, but I would only like it if she placed Harry nearby so that he could kill the bastard in return...Wormtongue and Snape, the two characters I'm most tired of. Oh, and then there's Draco, and his father, and Fudge...okay, the list is actually quite large after all.
I'm going to see the movie tonight...I hope it does justice to the book. It doesn't have to be identical (I'm not one of those types), I just want it to be enjoyable of its own accord.