You Can Count On Me (2001)

In the directorial debut of playwright Kenneth Lonergan, Linney, and Ruffalo -- each a charismatic ace -- play brother and sister, a pair of disconnected small-towners who, as Linney puts it sidewise to a priest, ''just can't quite get ahold of themselves.'' He's a dope-smoking drifter; she's out of control in a neurotic middle-class way -- a single mom unsettled by the prospect of settling down and instead entangled with her bank-manager boss (Matthew Broderick, at his most compellingly twerpy). The story of their relationship is an intimate, intricate marvel about ties and disconnections.