Directed by Alejandro González Iñárritu | Starring: Naomi Watts, Sean Penn, Benicio del Toro, Charlotte Gainsbourg

Paul Rivers, an ailing mathematician lovelessly married to an English émigré; Christina Peck, an upper-middle-class suburban housewife and mother of two girls; and Jack Jordan, a born-again ex-con, are brought together by a terrible accident that changes their lives.