When I saw this on the big screen, my first reaction after the lights came on was "I need to see that again!". This is one of those films that keep you on your toes the entire time, and you're constantly asking yourself "What is going on?"
It's not the kind of film that gets under your skin in that you get emotional satiscfaction or a resolution, rather it gets into your brain and settles in a corner and proceeds to bug you.
It tells four stories of people in the oil business, in espionage, in the terror "business", and the legal business, all of them intertwined at some point, and none of the characters are up to good things.
The film has a huge list of characters, so that doesn't make it any easier, but it is definitely an interesting film for those who don't like their films being pre-cut and mashed for easy consumption. I also have to admit that George Clooney has really grown on me. I mean, he was hot all along, and I don't mind watching a few of his earlier films, but hot and brainy is unbeatable :-D.
OK, now that I have place myself squarely in the shallow crowd, you still should have a look at this if you like entertainment with a challenge.