I guess I'm the party-pooper here... as I see a train wreck.
Now I like the original comics, and think Frank Millers crude dark style comes across well in that medium, but I just don't think they should have tried to adapt it so directly to film.
In the longer footage that was leaked from the comic-con, they had longer sequences of the film. The look and style then feels more silly and almost distracting. All I could think of was the Dick Tracy movie.
Even if the film does turn out to be good, I think the visual styling is going to keep people away in droves.