Very valid questions.
You could make a great movie that is a poor adaption of a comic. Imagine if RoboCop was supposed to be an adaption of the Judge Dredd comic. What would fanboys think of it then?
Fans can be very anal and possesive about their favorite characters. Embarassingly so. But I think, generally, fan opinions match with the mainstream viewer opinions. Spider-Man 2, X2, The Dark Knight, Iron Man - these are, on the whole, considered the best superhero movies by fans and non-fans alike. Batman & Robin is considered the worst movie ever made by just about everybody.
Ok, I think i have one on a par, almost, with your Robo-cop/Judge Dredd proposition. I was talking about it earlier tonight...Constantine.
Now, i have never read a Hellblazer comic in my life, but I was aware at the time of it's cinema release of the outcry from fans, at the transatlantic makeover of both setting and character, with fans disowning the movie before they had even seen it.
So i went to see it at the flicks, place was empty, maybe four people in the whole theatre, and there I was sat in an empty theatre with all these fan complaints ringing in my memory, expecting the worst, and then as the movie progressed I thought, hey, this movie is actually pretty good, why is this theatre so empty? Why are so many people complaining about this film?
and in answer to the second question, of course because it changed what many fans thought was a fundemental of the character, they changed him to a good looking Hollywood actor, as opposed to a dishelveled English Columbo type.
How many people on these boards talk about this movie? Never, it is never mentioned.
I have it on dvd, and have always enjoyed it when i watched it, I haven't watched it in a while as i just haven't been in the mood for it, as it is a bit grim in a way, but, it is a very well made film.
edit: I recall a poster, on another board i used to frequent, saying he would *never* watch the film, he being a fan of the comic book series, because of the actor cast and transatlantic changeover.
that is crazy to me, surely you would want top see it, just in case it is a great movie on it's own terms? What do you have to lose by watching it, but two hours, a couple of quid, and maybe a couple of bite marks in your tongue or whatever, if you are watching it in a theatre, haha.
Fans can be too harsh, but they are *adaptations*, as long as they do not alter the fundementals of the character, to the point where the character changes, and they would have been as well to make up their own character, I think fans could go easier on changes made for the film. Sure, we can debate these changes , and that is what is fun about these boards, but aye, I see a lot of folk going apesh** over things that are part oand parcel of the adaptation process.
Take Nolan deciding to set Batman in a non-superpowered world, nowt wrong with that version, if that is his best way of approaching the material fine, but I don't think it is reasonable for fans to be so up in arms about it that they say it's not really Batman, and I am baffled by bat-fans who outright dislike the films *for that reason*. there have been ample Bat-tales told in this way, some of the best ones, mostly the best ones for chridts sakes, haha.
That is another example i think of fans being too hard on the adaptations.
Same with the Raimi Spider-man films, people saying he didn't 'quip' enough, so it's not really Spider-man. Man...when you watch the films you can see exactly why they didn't have him quipping all the time, it could get in the way of the action, and could even make the character sound annoying if handled wrong.