Maverick filmmaker Robert Altman (MASH, Nashville) steps into Agatha Christie territory with this murder mystery set in a grand English country house. Features a host of British acting greats (Michael Gambon, Maggie Smith, Helen Mirren, Emily Watson) and an Oscar-winning screenplay by Downton Abbey creator Julian Fellowes. New 2K restoration also features commentary by Altman and Fellowes, exclusive cast interviews, limited edition collector's booklet, and more. 2 hrs, 1 Blu-ray disc.