"Portuguese director Pedro Costa has been steadily building an impressive body of work since the late eighties, and these are the three films that put him on the map: spare, painterly portraits of battered, largely immigrant lives in the slums of Fontainhas, a neighborhood on the outskirts of Lisbon. In Ossos, after a suicidal teenage girl gives birth, she misguidedly entrusts her baby's safety to the troubled, deadbeat father. In Vanda's Room is...