Ida is a modest but beautiful Polish-language buddy road movie from Pawel Pawlikowski, who returns to his homeland for a gorgeously vintage story of histories both personal and political. The sheltered Anne (Agata Trzebuchowska) is a novice nun in Sixties Poland, who has been living in the convent since she was abandoned as a child. Before she takes her vows, she is sent to meet her only living relative, the hard-drinking, cynical Aunt Wanda (Agata Kulesza), a former prosecutor with the Stalinist regime, and get a taste of the secular world she is preparing to reject. Anne’s benign ignorance give way to a complex…