Oddly enough, this thoroughly 'English' version of Agatha Christie's classic tale is available only in the US NTSC version, so you will need to use a universal viewer, or, as in my case, set an Apple computer to NTSC mode, and use that. This is a first-rate version of the story, with excellent settings and a splendid cast, including James Warwick and Francesca Annis as the investigating couple (they would team up later as Tommy and Tuppence in 'Partners in Crime'). There is a star-studded cast (to use a convenient cliche), but they all make themselves belong to the story, rather than become a mere procession of famous faces. This version is very faithful to the original, and is fast-moving and authentic in feel. Very well worth acquiring.