The gayest giallo. I'm not a huge giallo fan but this actually strays from that quite a bit. It's mostly using that as a framework to hang everything on. It looks good and is surprisingly funny. It winds up being more of a thriller with lots of backstory and character stuff (though the handful of kills are pretty gory) and does a HUGE info dump right at the end that feels like it kind of sucks out some of the wind. All in all, though, pretty good.
Just absolutely one of the best movies ever made. You feel lost in this stifling, morose, beautiful, morbid dream jungle with the everyone else. You understand Kurtz's madness if you had to be in a place like that. Still an amazing movie. This kind of craft could only come from a mad genius.