The one I enjoy the most is Corleone, though I'm not sure whether it'd be part 1 or 2. He's very good in Glengarry Glen Ross as well, and I enjoyed his performance in You don't know Jack recently, not his best but worthy of being mentioned cos it was finally something challenging, I felt, after two decades of him cruising through parts. I like him in a lot of his films to be honest (Carlito's way, Donnie Brasco, Insomnia...) and I have an odd fascination for two of his over the top yelling parts, Devil's Advocate and Any Given Sunday! Oh and Looking for Richard is great as well, though I don't think you can say he's actually acting in it.
Cheers Archie, I was wondering whether it was 20s or 30s and wasn't quite sure. Apparently the back story about the dams and water shortage are based on a real story, Californian Water Wars, I'm going to read into it!