By now, film adaptations based on the oeuvre of the two most prolific British writers of crime fiction, Arthur Conan Doyle and Agatha Christie, form a respectable body. Of the latter, probably the best-known work remains “Murder on the Orient Express.” Today comes a new version by the, himself now almost venerable, Brit actor, Kenneth Branagh. From the get-go in this iteration, the actor/director makes no attempt to shake the