As far as the movie goes, it’s definately worth the 3+ hours of getting into the theatre and sitting through the actual movie.  It’s a pretty dark film, even without the Joker’s great performance.  People’s lives were threatened, tortured and killed throughout the movie with no end in sight.  I enjoyed the suspense that was maintained as I didn’t feel the movie movies too quickly, nor too slowly at any given point.  The only semi-disappointment was the ending on the two-face storyline.