Einstein and Eddington

While the Great War grinds on, Albert Einstein (Andy Serkis) in Berlin works out a new theory of gravity that almost no one else can follow. In England, the astronomer Arthur Eddington (David Tennant) reads it and decides it deserves a test, even with the two countries at war. Philip Martin builds the story around the letters and the long distance between them, a friendship carried on paper by two men who have yet to meet.