It may be worth noting that The Dark Knight kept the origins of the Joker a secret, and I shouldn't need to tell you the results of that particular storytelling experiment.
Absolutely. And that was a brilliant decision--for a
villain. It might even work for a secondary hero.
It does
not work for the main character/hero of a piece under most circumstances. In the overwhelming majority of cases, for an audience to truly sympathize and identify with a character, they have to have at least some idea who that character
is.
Howard's Kane had more depth than most pulp heroes, I'll agree with you that far. Unfortunately, given the average pulp character, that just means he's two-dimensional rather than one-dimensional; he still doesn't remotely approach three. And a lot of who he was had to do with the fact that all his religious and moral reasons for hunting monsters were mere justifications--even in his own mind--to excuse the adventurous urges he felt anyway.
I really don't think that would work for the average audience today, even if you could somehow get it across in the medium of film. (And since it was something even Kane himself didn't realize, and was only in the stories via narrator explanation, I think you'd have to change the character more to express it than you would to give him additional motivations.)
But frankly, when you get down to it, I don't expect--or even necessarily want--fidelity to all the details when it comes to cinematic interpretations of literary works. I want
thematic fidelity. I want to watch a movie and say "This
feels like Solomon Kane," or "This
feels like the Fellowship of the Ring." The
details are, to me, far less important than the overall effect--and so far,
from what I've seen, the overall effect works. (For me, anyway.)
Ultimately, of course, it's all about how the movie as a whole comes together, not the trailer. I think it looks like a reasonable interpretation--not a
perfect one, but very much more than "close enough." You, rather obviously, do not. All I can say is, I
hope that you're wrong and I'm right.
