The author of the novel 'Death on the Nile' is Agatha CHRISTIE, with 8 letters. The 1978 film adaptation was directed by John Ustinov, with 7 letters. The screenplay was written by Anthony Shaffer, with 3 letters. Agatha CHRISTIE is a British writer known for her mystery novels and short stories, many of which have been adapted into films and plays. John Ustinov was an English actor, writer, and director who won two Academy Awards for his work. Anthony Shaffer was an English playwright and screenwriter who wrote the screenplay for the film adaptation of 'Death on the Nile'.