Kenneth Branagh’s new adaptation of “Murder on the Orient Express” contains some of the best of old and new. Based on the novel by Agatha Christie, this is in many ways an old-fashioned entertainment, but it has the pace and visual richness of a modern movie. And it’s almost as star-studded as the famous 1974 adaptation, which starred Albert Finney, Sean Connery, Ingrid Bergman (in an Oscar-winning performance), Lauren Bacall and John Gielgud. Fans of the 1974 version may see this movie and think, “Oh, but the original was so much better.