It's about everything. It's about nothing. It's essential craftsmanship for the director; film transitions 101, blocking 101, advanced camera lighting- you name it. It's exciting film-making. It's classic. It's brand new. It lacks substance, yet it's utterly mature, pure adult drama. It demands to be respected. It's so dense it seems empty. So profound it seems trivial. It's the cornerstone of American cinema.