Desc: The Agatha Christie Code: Directed by Ben Warwick. With Jenny Agutter, Jane Birkin, Colin Blakely, Agatha Christie. What makes Agatha Christie such a successful writer? On the 75th anniversary of the creation of her immortal character Miss Marple, this documentary introduces viewers to new fields of scientific inquiry using sophisticated computer analyses of Christie's every written word, her sentence structure, story arcs, poisons used, red herrings, clues and more. From British Pathé TV's Arts Collection.