And there still acting now, Eastwood is 81, amazing that hes still going.
I also like Jack Nicholson, the original joker. He always seems to play lunatics or people that aren't right in the head, or maybe its how he is and its the way he portrays the characters.
Can't believe no-one's mentioned Kevin Spacey. Doing more theatre than cinema theses days but still does the odd movie.
As for some of the others mentioned above:
Di Caprio. Didn't use to have much time for him, but has become a fine actor the older he's got. Pitt. Nice guy, but best actor of his generation? You're having a laugh. At his best doing comedy IMO; eg Burn After Reading, True Romance, Snatch.
George Clooney also gets a mention in my view. Not the finest actor per se, although certainly a decent one. What he is though is an amazing screen presence. The cinema screen absolutely loves him. Again though at his best when playing comedy IMO; any number of Coen brothers' films.