As mentioned in the previous two posts, they really screwed up Veidt's character. He almost feels like a stereotypical villian in the movie, when the intention of the graphic novel was that he was the least likely person in the world to be a villian. This and the squid are the two things that really hurt the film in my eyes that I don't see fixable via fanedit. If someone can figure out a way to make Veidt more ambiguous, I will be very proud of them. But honestly, it is going to take more than a change in music to do that.
Under the Hood was an interesting little bit of supplemental material, but I really don't see it belonging in the film. It would really screw with the pacing and make an already very long film even longer. Interesting idea though.