I saw this on Acorn TV, and thought the scenes with Sir John Gielgud and James Warwick, as well as the scenes with (Lord!) Bernard Miles and James Warwick were sensational. And, Warwick should be applauded for his wonderful performances with the venerable old masters. Of course, Francesca Annis was perfect as Frankie. The character of Badger Beadon (played by Robert Longden) was great fun. The screenwriters (none are credited) used the near final scene in which Roger tells Frankie about all of his villainous deeds, in place of the novel's letter from Roger (while not knowing how else the screenwriters could have conveyed all this information, the latter was the one scene that I disliked). The movie is long, beautifully photographed, the scenery is picturesque. Yes, there are some slow moments, but overall, this was an excellent presentation of Christie's book, well acted and a worthy production.