Actually DO WASTE YOUR MONEY.
Probably the best movie Kubrick never made. At last an intelligent thought provoking piece of Science Fiction that doesn't have the use of laser blasts and robots- oh and doesn't overstay it's welcome unlike Tarkovsky's original- brilliant yes but ponderous. Not a fan of Clooney but his performance is excellent, only overshadowed by Jeremy Davies who certainly knows how to play weird (a bit unfair- catch Roman Coppola's cracking 'CQ' from last year which apart from being a love letter to Mario Bava has JD along with Depardeiu and Jason Schwarzmann playing thinly disguised well known film makers).
Bottom line folks the only reason you 'don't waste your money' is that you were taken in by Fox's appaling marketing campaign. They didn't know what they had pushing it as an all out SciFi movie here and a love story in the States, but if you want a rest from the usual brainless pap that Hollywood churns out, this is certainly for you!