Machu Picchu was discovered by the outside world in 1911. Ernest Shackleton launched his Imperial Trans-Antarctic expedition in 1914. King Tut was exhumed in 1923.It was during this extraordinary period of geographical exploration and archeological discovery that Percy Fawcett (Charlie Hunnam), the hero of director James Gray’s painterly and poetic atmospheric dreamscape, “The Lost City of Z,” was both maligned and acclaimed as one of England’s bravest explorers.A land surveyor, intelligence officer …