In brief: It’s hard to make numbers sexy, especially on screen, but the life of Indian mathematics genius Srinivasa Ramanujan, who revolutionized the field in the early 20th century, was an extraordinary story waiting to be told. Hailing from a poor Brahmin family in Madras, he arrived in Cambridge in 1914 and set the university on fire with his brilliant mind and startling mathematical formulas. The story begins just as World War I looms as an impoverished Ramanujan works as a lowly clerk in an accounting house in his homeland. He decides to write a letter to the formidable Cambridge mathematician G.H. Hardy, asking to be allowed to further his pursuits at Trinity College, Cambridge. Initially, a skeptical Hardy thinks the missive is a joke, even if he is tempted by the examples of the formulas inside and decides to take a chance and beckon Ramanujan abroad. The narrative is primarily driven by its central odd-couple relationship, amid cultural clashes and bigotry.