'The Man Who Knew Infinity' stars Dev Patel (Slumdog Millionaire, The Newsroom) as Srinivasa Ramanujan, an unparalleled genius of mathematics who earns a seat at Cambridge University during World War I, where his theories are mentored by professor G. H. Hardy, portrayed by Jeremy Irons (The Man in the Iron Mask, Batman V. Superman). The British biographical drama is based on the 1991 book by Robert Kanigel and it took writer and director Matt Brown over ten years to get his screenplay written and produced.