Hurt Locker is really good, as is District 9
Gran Torino had good reviews, but is f**king rubbish. Avoid.
Gran Torino is absolutely brilliant. Clint's acting is phenomenal, great story, most of the acting was alright (except one of the Hmong actors), some good laughs, good drama. Real pity that it was his last movie acting in (or so I heard).
He directed Changeling, though, which I thought was a really good movie. I'm no fan of Jolie (at all) but she did well and it was a good story (loosely based on true events) put together well.