I really enjoyed the movie. Though, the subtle changes were there, they did not adversely affect the movie. Granted, a few friends I went with had not read the graphic novel, so I had to fill them in a bit on what happened. Though my friends hadn't read the graphic novel, they all really enjoyed it as well. I felt the music went really well with it too. Even you did chuckle a few times, I think it was necessary to have a bit of humor in there to lighten the mood and remind people it is still a super hero movie and should not be taken -too- seriously.