I know this is really late notice, but if you're interested check your local PBS listings for a Masterpiece special airing this evening - David Suchet on the Orient Express. Here's a bit about the show:
Celebrated actor David Suchet sets aside his alter ego Hercule Poirot to step aboard one of the world's most iconic trains in the documentary David Suchet on the Orient Express: A Masterpiece Special. From London, Suchet travels to Calais in northern France to board the Venice Simplon Orient Express, and begins his 2,000-mile journey through six countries, with a breathtaking stop in Venice on the way to Prague. The delightful Suchet revels in the artistry and beauty of the train, and explores its attraction for Agatha Christie, who used it as the setting for one of her most recognized novels. With the incisive inquisitiveness of Poirot, Suchet also traces the history of the Orient Express from its elegant beginnings to its tumultuous final days, and how its legacy has lived on. Come aboard for a charming and insightful view of the timeless Orient Express.