Movie remakes can be a bit like theatrical revivals when there’s a corker of a story to tell with a thrilling new ensemble, but Kenneth Branagh’s 2017 version of Murder on the Orient Express (B-) with the actor/director in the top-billed role as the intrepid Detective Poirot doesn’t add or enrich the story enough in any remarkable ways to make it essential. That said, this fourth adaptation of the Agatha Christie work is a handsomely mounted whodunit with some nice bits from the likes of Daisy Ripley, Michelle Pfeiffer, Johnny Depp and others. On the aggregate, however, none of the sprawling cast members gets anything close to the scenery-chewing delights that Branagh does. As an actor, he’s the film’s liveliest and most eccentric surprise, as he searches for the clues of a world out of its normal order. As director, he makes ample use of digital technologies to glide in, out of and around the titular locomotive, including some fun overhead shots of train car cabins. Ultimately the plot loses steam, and the novelty wears off. Although it’s heartening to have a new-Hollywood entry into the mystery genre, the best part of Branagh’s slick schtick is his old-fashioned performance.