I'm not quite sure how anyone could not like this movie. It's completely and utterly disturbing, while also being complete and utterly fantastic. Fantastic in every single way a film should be. The shots, the lighting, the writing, the sense of mystery, intrigue, crawl up up your skin hate and fascination all at the same time. Javier Bardem and Josh Brolin are incredible.
I know this film came out awhile ago, but I saw it last night and had to it. Who cares that we don't know the history behind this guy. Who cares that we don't know much anything at all about the money. Not every single thing needs an answer.
Go rent it.