I totally agree that the casting was spot on. And I have the same complaints. Alan Moore has never shyed away from graphic sex in his books, but it is usually one or two panels. And when the goons are trying to break into Rorschach's cell and he hand cuffs the guy to the door and they cut his arms off was stupid. I forgot what they did in the book, but that was shameless over kill in my opinion. As for them being super powered, I felt that even in the book these folks are above average in a fist fight. Its not so much that they are super strong as they are very skilled and naturals at fighting. But the movie did seem to exagerate their abilities. And I feel they could have still made the alien invasion ending work with out diving too deep into the subplot. They tried to modernize the ending and to me that steals from the atmospere of the story. This is supposed to be a cold war era alternate universe early 80's setting which fit perfect with the original ending. But that said as for a film adaption of a comic I thought they did a pretty damn good job compared to a lot of others like say all of the X-men flicks, complete butchery.