Mark Waid, author of Superman Birthright, gives his (somewhat spoiler-y) review of the new Man of Steel film. Given that the film just came out last night and most people haven't had time to see it yet, I'm opting not to blockquote anything Mark wrote.
Once you've seen the film though, head over there and read the review because it's very good. I don't entirely agree with Mark's vision for how Superman should be characterized throughout the canon, but I definitely feel where he's coming from.
