Wow, no votes for Crash? In terms of ensemble acting and intensity, I rate it more highly than any other film I've seen this year. Cheadle, Bullock, Dillon and Fraser all gave stellar performances (a first for Fraser), and the actor that played the Mexican repairman (don't recalll his name) was fabulous. My wife left finger-nail marks on the armrest she was gripping it so hard during parts.
We also liked Million Dollar Baby, but man, the ending was brutal.