From Albert Finney to Sir Kenneth Branagh (and, of course, David Suchet), the screen legacy of Hercule Poirot is a storied one.
Of all Christie’s detective novels, Murder on the Orient Express perhaps lends itself best to a blockbuster: it promises grand set-pieces, an opulent train cutting through rugged, snow-capped scenery, and a neatly contained roster of suspects ripe for starry casting.…