Margaret (Fox Searchlight, two discs). Kenneth Lonergan’s masterpiece, the wrenching story of how a seventeen-year-old New Yorker (Anna Paquin) is brought face to face with the terrible fragility of life. Because Margaret nearly vanished without trace–it was only seen in a handful of theaters–the release of the film on home video is by definition a major event. Anyone who was moved by Lonergan’s You Can Count on Me will be shaken to the core by Margaret. The Blu-ray disc contains the shorter theatrical version, the DVD the full-length extended cut (TT).