Batman Begins was the first batman movie that actually looked realistic. I thought the movie did a good job explaining the origins of Batman and his training.
I actually thought that Batman Begins was too
modern. Writing Batman like a Tom Clancy character is a good way to break away from his former campy screen persona, but it loses some of my favorite things about the franchise.
The thing about Batman and Superman was that when they first came out they were shown as visions of the future. As the series went on it retained that aura and now Batman's world is a kind of alternative futurist reality. This was best presented in the art deco styling of the 1990's animated series. It was also incorporated in the first two films having the really cool effect of an ambiguous time period. It could have taken place in the 1930's, the 1950's or the present. It also shows the failure of the futurist vision in the degeneration of Gotham city into a crime infested slum. This was shown to some extent in Batman Begins, but only in the flashbacks and it didn't quiet sync with the style of the movie. It was almost entirely dropped in the sequel, which adopted a gritty, hard-boiled realism.
The modernist hard-boiled style of Dark Knight takes after TV shows like 24, The Wire and CSI, to showcase it's pulp styling, but it could go the other way. Batman is ripe for a Noir styling, and it has been used in the comic Batman: Year One by Frank Miller; who utilizes it to the fullest in his Sin City series and movie. Unfortunately it hasn't really been seen in a Batman film yet, and I'd like to see that happen.
Many people would like to see the Noir Batman story Hush made into a movie.