I think he should make the sequel...In my opinion, you aren't looking at it the right way if you say no because it was never a comic book movie. Although it is correct that it isn't a comic book movie, it still had all the "Superhero Mythology"; for example, the hero became who he is with the help of the "eventual" villian, and there was the main female character (Mrs. Dunn) and the main male character (Dunn himself), to provide the one-hundred percent balance to the story, just to name two of the many examples there are of the "Superhero Mythology". The film was supposed to show you what it would be like if superheros really existed; it wold not be like superman...In short, it wold make scene for their to be just one sequel; because now that he knows who he is, we can see him, and again, in a one-hundred percent realistic manner, in action against the bad guys.