This 2001 Coen brothers film may not be as high-profile as some of their others, but this black-and-white grim character study is a fascinating study in tone. Billy Bob Thornton plays a guy who walks through life depressed, and with good reason. There are plenty of good reasons to watch this movie, too, starting with its supporting cast, which includes Frances McDormand, James Gandolfini, Richard Jenkins, Tony Shalhoub – and, in an early, impressive role, Scarlett Johansson.