One of the best parts of doing a Their Best Role piece is the debate over what constitutes a specific actor's greatest performance. I go through it personally before I write one of these -- perusing IMDb pages and my own memories, weighing one part against another, one film against the next, and then I finally come to a conclusion and sit down to write -- knowing full well that I've merely completed the first of many debates to come. That's the beauty of writing about films, actors, and directors -- there's room for many different opinions and they're all essentially valid.

Take the subject of this entry -- Josh Brolin. At 42 years old, Brolin has had at least three roles that could qualify as his "best" (make it four if you want to get nostalgic for The Goonies ... ). I wrestled over the decision when it came to which one to choose. His portrayal of Dan White in Milk was a great performance, and if you argued in favor of it -- I'd probably not disagree too vehemently. Brolin's portrayal of the George W. Bush in W. was fantastic, too. However, when it came down to it, there was only one role that really made sense for me -- and that was Brolin's work as Llewelyn Moss in the Coens' No Country for Old Men.