The epic battle between light, "The Dark Knight" and dark, "The Joker" is played to such fevered pitches then brought back to a semblance of what normal would appear to be, had chaos not shattered it. The delicate dance between dark and light is brilliantly depicted by "The Joker" hanking upside down during a moment of sanity, telling "Batman" how one would not be wothout out the other. The "Joker" hanging upside down lecturing an upright "Batman" is the most powerful use of verdal and visual continuity. I might be off base, however, I saw the Ying and Yang!