The Man Who Knew Infinity

Film, Drama
3 out of 5 stars
4 out of 5 stars
(3user reviews)
The Man Who Knew Infinity

This biopic of Indian maths genius Srinivasa Ramanujan does not go to infinity – or beyond. It features some exceedingly good British actors, but the script gives us a version of his life that feels like it’s from the Marks and Spencer advert. Which is a shame, because it’s an extraordinary story.

We meet Ramanujan (Dev Patel) in 1914, working as a bookkeeper in Tamil Nadu (his brain is quicker than the abacus). Self-taught, he writes to a professor (Jeremy Irons) at Trinity College, Cambridge, who recognises his talent and invites him to the UK where he’s met with horrible, ugly racism everywhere – sneery old dons deliberately mispronouncing his name and brainless thugs beating him up. This is polite and earnest, but never quite adds up to much.

By: Cath Clarke


Release details

Release date: Friday April 8 2016
Duration: 108 mins

Cast and crew

Director: Matt Brown
Screenwriter: Matt Brown
Cast: Jeremy Irons
Dev Patel
Stephen Fry

Average User Rating

3.7 / 5

Rating Breakdown

  • 5 star:0
  • 4 star:2
  • 3 star:1
  • 2 star:0
  • 1 star:0
1 person listening

Dev Patel was fantastic in the lead role of this film, and it was heartwarming to see his relationship with the professor grow. 


If you're a fan of maths I'm sure you will enjoy this film, but sadly even though this film had some great acting going on it just left me feeling a bit stupid. The story is a classic rags to recognition story and I have nothing but respect and admiration for the drive and determination of the stories hero. Some areas of the film could have benefitted from further development such as the relationship with his wife. That said the relationship between the two lead characters is heartwarming. 


I do not know much about mathematics, which made it a little hard to truly appreciate the significance of his discoveries, yet I really enjoyed the movie. The acting is amazing as is to be expected from the cast, and the story is very inspiring too.

I always appreciate films who tell the stories of those who are not as extensively recognized by modern day society. I would definitely recommend this film, especially if you enjoy films like 'The Imitation Game' and 'The Social Network'. I wouldn't quite say they are in the same league, but close.