Agatha Christie up to the last chapter, then decided who the most unlikely suspect was, after which she would go back and make the necessary changes to "frame" that person. However, John Curran's "Agatha Christie: The Secret Notebooks" describes different working methods for every book in Christie's bibliography, contradicting the claim by Aldiss. Christie's mature novels, from 1940 onwards, often have titles drawn from literature. Four are from Shakespeare: Three are from the Bible: Another six are from other works of literature: In such cases, the original context of the title is usually printed as an epigraph. Similarly, the title of Christie's
Agatha Christie best known novels with heavy archaeological influences are: Christie has been portrayed on a number of occasions in film and television. Several biographical programmes have been made, such as BBC television's "" (2004; in which she was portrayed by Olivia Williams, Anna Massey, and Bonnie Wright, at different stages in her life), and in Season 3, Episode 1 of "ITV Perspectives": "The Mystery of Agatha Christie" (2013), hosted by David Suchet, who plays Hercule Poirot on television. Christie has also been portrayed fictionally. Some of these portrayals have explored and offered accounts of Christie's disappearance in 1926, including the film