"A vision of the failure of our idealism before the inexorable tide of entropy... a Sartrean paranoia of no hope for escape, no possibly of exit... the dreamlife of mice in their sterile maze that is this sprawling microcosm of all of the miseries and suffering of the world."
"The failure of reason is the great bogey of this modern day... The dam's broken and you can't put the water back; and though it's not obviously an allegory for them, suddenly the film functions as stark reflection of our anxieties that we might be too late to save the planet, too uncertain of the terms to win the war."
"Midway through, I realized that the picture was genuinely upsetting me, that I was actually terrified by the places it was allowing its Joker to go. This Joker isn't carnival sideshow, he's not Jack Nicholson crazy--this Joker is cross-the-street crazy. The glittering beauty of it is that the character is scary because his madness is born of sadness and possibility."
-All quotes from Walter Chaw, filmfreakcentral.net