One of my top movies of all time.
Fincher has such an eye for detail, and an ability to constantly propel a story forward. This movie weighs in at well over two and a half hours but there's not a single moment wasted, no drifting off into the second act doldrums.
None of the myriad characters are allowed simply to move the plot forward...the reporters, the cops, the boyfriends, the wives, the guy who makes the coffee, the murder victims...they're all dealing with their own day to day issues; they're all fully realised, three-dimensional, relatable people.
Even the Zodiac, nutter that he is, gets his own self-delusional arc. But watch carefully, Fincher never once hands him the POV like he does with most everyone else.
It's a really easy, sure fire way to generate tension in a drama, watching with the murderer as his unsuspecting victims come within his sights. Puts you right on the edge of your seat, which is why practically every other director would have pulled the trick. But...But it also makes you complicit, leaves you feeling just a little bit tawdry.
Fincher doesn't shy away from the acts of violence, or the build up to them, but not as viewed by the Zodiac, we see it from the perspective of the people who became his victims, and because of that it doesn't feel as though they're being exploited all over again. If anything, the director attempts to hand them back some of their humanity.
He's a master craftsman, Fincher, with a cannie knack for taking a great script and wringing every last ounce of drama out of it. And this, for my money, is him at his very, very best...