Awesome Sound Tracks

I have always enjoyed sound tracks from movies. It allows you to enjoy a lot of different artist and then even find some new ones to hook into (yeah, yeah...I know sometimes you get lame bands but it's worth the money for me). I got first hooked on them when I bought the "Judgement Night" soundtrack that mixed metal with rap. A great sound that I thought would never mix together (especially the mix with Helmut & Onyx). I then bought the "Queen of the Damned". Excellent music for those into vampire music with a mix of artist and some artist going solo from their bands. Prior to Saw iii, I bought the "Underworld:Evolution" and it also contained a great mix of artist that I hadn't been exposed to before. Anybody else know any other good sound tracks out there?