A middle-class Irish couple living in London with their two young sons are at the center of Les Blair’s fresh, lively, and utterly convincing comedy-drama about contemporary urban life. He’s a town planner (The Crying Game’s Stephen Rea) and she’s a housewife who works part-time at a bookstore (Waterland’s Sinead Cusack). The film carries no script credit and was essentially generated by the actors in collaboration with Blair. As a consequence, the minimal plot, involving such matters as a refurbished bathroom and the couple’s friends and coworkers, rambles a bit, but the focus is almost entirely on character, especially the lead couple and their marriage, and the film’s surface glitters with moments of actorly and behavioral truth. With Saira Todd, Clare Higgins, Philip Jackson, and Phil Daniels, who does a swell job of playing identical twins (1992). Music Box, Friday, December 24, through Thursday, January 6.