Death on the Nile (1978, dir. John Guillermin)

Hercule Poirot holidays in Egypt; murder is soon afoot. Quasi-sequel to Murder on the Orient Express. Breezy escapist fun with a rich cast of character actors and bright young things hamming/preening respectively, though its clumsy treatment of non-whites plays as racist rather than as innocent comic relief.

Murder on the Orient Express (1974, dir. Sidney Lumet)

Hercule Poirot finds himself in the middle of an elaborate onboard murder. Classy all-star version of the Agatha Christie warhorse. The business of the plot makes in-depth characterisation problematic, but everyone gets their moment to shine, with no resorting to the opening out of the recent Branagh version.