In this episode we watch the movie The Man Who Knew Infinity. And in this episode we learn that we shouldn't be mean to Dev Patel. You can admire Jeremy Iron's subtle performance of introversion; You can wonder if maths is like Jazz; You can even question whether Ramanujan really was as brilliant as he was claimed to be. You can do all of this... as long as you're not mean to Dev Patel. Join us for episode four of Maths at: The Movies as we delve deep into the biopic of Srinivasa Ramanujan. If you're interested in watching The Man Who Knew Infinity you can follow the Amazon link below. Further reading links: more than you would ever want to know about Ramanujan; Hardy's famous apology; puzzles based on Ramanujan's work; buy the book behind the film; Chinese multiplication; Generating -1/12 from adding the integers. Subscribe via iTunes.