Director George Clooney, working from a script originated by the Coen brothers, turns out the year's most gutting disappointment. With this kind of talent involved – plus an A-list cast headed by Matt Damon, Julianne Moore and Oscar Isaac – audiences had a right to expect more than a well-intentioned lampoon of whites-only 1950's suburbia. The frustration intensifies when Clooney tacks on a deadly earnest subplot about an African-American family that intrudes on the Caucasian American Dream. Though the incident is loosely based on the race riots sparked when a black family moved into the all-white suburb of Levittown, Pa, in 1957, the tonal shift is jarring. Is replacing satire with sermonizing ever a good idea? Here, it's a bona fide death knell.