Film review: The Man Who Knew Infinity (12A)

Adapted from Robert Kanigel’s 1991 biography, The Man Who Knew Infinity is a handsome dramatisation of the life of a self-taught Indian mathematician, who came to England just before the First World War to share his passion for numbers. It’s a glowing tribute, written and directed by Matthew Brown, which extols its remarkable subject, Srinivasa Ramanujan, as a beautiful mind, who conjured solutions out of the ether. Sadly, Brown’s film fails to make clear exactly what these secrets were and how the lead character was instrumental in ploughing new cerebral furrows.

Ramanujan (Dev Patel) is a 25-year-old shipping clerk in 1914 Madras, who dreams about formulae, which he scribbles in chalk on temple floors. With the blessing of his employer, Sir Francis Spring (Stephen Fry), Ramanujan sends some of his mathematical musings to revered academic GH Hardy (Jeremy Irons), who is a fellow at Trinity College, Cambridge alongside Bertrand Russell (Jeremy Northam). On general release. Damon Smith