As Kenneth Branagh prepares to unveil the latest version of Death on the Nile, Celia Imrie looks at how the classic murder mysteries of the great Agatha Christie have been treated by film-makers over the years.

Christie was the queen of crime on the page, but here we discover why that wasn’t always the case on the big screen. Using a selection of BBC interviews and archive material, we piece together a tale of creative highs and lows, featuring Hercule Poirot, Miss Marple and many of the all-star acting heavyweights who helped turn some of the films into box office gold, proving in their own way that in the cinema, crime does pay. Show less