James Gray wrote and directed the adventure movie "The Lost City of Z," based on Percy Fawcett the real-life explorer who inspired fictional characters from Indiana Jones to the swashbuckling heroes of books by Arthur Conan Doyle and H. Rider Haggard. The movie stars Charlie Hunnam, Robert Pattinson, and Sienna Miller. Gray and his crew had to re-create the arduous journey through the South American rainforest; while they had better technology than Fawcett's group, they also had to bring along...