A merciless anatomy of the inner meltdown that follows a hit-and-run accident, The Headless Woman is as baffling, brilliant, demanding and utterly original a work as you're likely to see all year. Its themes are confusion, amnesia, disavowal. The director, Lucrecia Martel, by contrast is in vice-like control of her material. This film might be a real head-scratcher. But no-one seeing it can come out unconvinced that Martel is a world-class talent.