I just don't think an adaptation has to face off against its source in order to gain the right to exist as its own thing. And the film was at least successful in being the strongest advertisement a comic has ever had.
They don't. They can be different, and their own beasts, as long as the final product is good. But when you do a scene for scene recreation, and still fail to capture a lot of important elements, or make it into its own thing, thats when the problem sets in.
Also, when you just take a title, and have something COMPLETELY different and it comes out inferior, that's no good either.
Movies have the advantage of visuals, movement, sound, and music, they should be able to beat the crap out of the book every time. And yet they very, very often don't. Just look at the terrible One Piece anime.
to be honest I think if you can't tell a superhero story WITHOUT origins you have a bit of a problem.
Thats the thing tho. In the movie the characters had super powers. In the comic they didn't.
So, someone ONLY watching the movie, and I got this question a few times from people that hadn't read the book, was "how did they get their super powers?"
The over-exageration added questions that people shouldn't have been asking, because those questions didn't have answers.