John J. Curran's We Don't Live Here Anymore is a chamber piece of a movie that offers an unflinching portrait of two marriages that are each experiencing severe rocky patches. For anybody who enjoys watching actors act, this film offers plenty to savor. Mark Ruffalo and Laura Dern capture the casual cruelty longtime couples can inflict on each other while simultaneously serving up enough self-loathing for behaving that way -- a vicious circle that grows more vicious as the film progresses. Naomi Watts balances fragility and anger with remarkable skill, while Peter Krause manipulates everybody with a potent cocktail of selfishness and intelligence. The filmmakers do a first-rate job of art direction, using the interiors of the two couples' houses to symbolize the state of their respective marriages. The film's cold, controlled tone doesn't allow any air into the film, and the screenplay makes an error by giving the emotional climax to Krause and Watts after giving the majority of the screen time to Ruffalo and Dern. However, those in the mood for a feel-bad look at four deeply flawed humans should find the performers compelling enough to trump the film's flaws.