Consequences. In real life, these ramifications emanate from every action like ripples from a stone thrown into a pond. Often in movies, especially those that feature characters who don't play by the rules, such penalties are suspended. However, in Christopher Nolan's Batman universe, decisions and actions have consequences. The Dark Knight, arguably the moodiest and most adult superhero motion picture ever to reach the screen, illustrates this lesson in ways that are startling and painful. This is a tough, uncompromising motion picture - one that defies the common notions of what is expected from a "superhero" film. While there are plenty of action sequences and instances of derring-do, The Dark Knight's subtext has a tragic underpinning that would intrigue Shakespeare or the Greeks. It's about power and impotence, sanity and madness, image and reality, selfishness and sacrifice, and - yes - consequences.