Films The Man Who Knew Infinity

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The Man Who Knew Infinity poster

Film · 2015

The Man Who Knew Infinity

Directed by Matt Brown · starring Jeremy Irons, Dev Patel and Toby Jones

  • 1 h 48 min
  • Biography · Drama
  • UK
  • Released in the UK 7 April 2016
  • 6.9 AverageMovieNCo
  • 6.8 Users7 votes
  • 6.9 Critics5 reviews
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Synopsis

Biographical film bassed on the book of the same name 'The Man Who Knew Infinity' written in 1991 by Robert Kanigel. The film tells the story of Srinivasa Ramanujan, an Indian mathematician who made important contributions to the mathematics' world like mathematical analysis, numbers, series and fraction's theory. With his hard work he got to enter at Cambridge University during World War II, where he continued working in his theories with the help of G. H. Hardy professor. Dev Partel ('The Best Exotic Marigold Hotel', 'Slumdog Millionaire', 'New Exotic Marigold Hotel') will play Srinivasa Ramanujan mathematician and Jeremy Irons ('Die Hard: With a Vengeance', 'Margin Call') in G. H. Hardy professor role.

Where to watch The Man Who Knew Infinity

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Available now in the UK:

Availability checked on 8 November 2026.

The essentials

Runtime
108 min1 hour and 48 minutes
Budget
$10m
Box office
$3.4m0.3 times its budget
How long is The Man Who Knew Infinity?
1 hour and 48 minutes (108 minutes).
When was The Man Who Knew Infinity released in the UK?
It was released in the UK on 7 April 2016.
Who directed The Man Who Knew Infinity?
Matt Brown.
Who is in The Man Who Knew Infinity?
It stars Jeremy Irons, Dev Patel, Toby Jones and Malcolm Sinclair.
Where can I watch The Man Who Knew Infinity?
In the UK it is available with a subscription on HBO Max and Netflix, with a channel on Now and a channel on Prime Video and to rent on Apple TV.
How much did The Man Who Knew Infinity make?
It took $3.4 million in US. It cost $10 million.
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Cast

Full cast (16)
Director
Matt Brown
Writers
Matt Brown
Producers
Joe Thomas, Matt Brown, Phil Hunt, Tristine Skyler

Videos and trailers

See the video
'The Man Who Knew Infinity' trailer 3:1828 February 2016

Photos and posters

All 20 photos

Reviews

All 5 reviews
6.8 7 votes
  • 100 %
  • 90 %
  • 843 %
  • 714 %
  • 629 %
  • ≤514 %

What the critics say average 6.9 from 5 outlets

  • 8.0 Screen DailyAllan Hunter The film is unashamedly middle-brow and sentimental but it tells such a good story that it is hard to resist. Read
  • 8.0 The Hollywood ReporterDeborah Young At first glance, the tall, gangly Patel is an odd choice to play a short, stout mathematician. Yet he captures his essential passion, dignity, and overweening conviction that his formulas are right. Read
  • 6.0 The TelegraphTim Robey Irons?s Hardy steals this film away from its ostensible hero, in part because pulling the shutters down makes him that much harder to know. Read

Box office

Weekend by weekend
  • Budget $10m
  • US $3.4m
  • UK £147,990

Trivia

  • David Leavitt ("The Lost Language of Cranes") wrote a semi-fictional version of this story in his novel "The Indian Clerk".

  • In the film Good Will Hunting when Stellan Skarsgård is trying to convince Robin Williams to take on Matt Damon he compares him to Srinivasa Ramanujan as an example of his extraordinary ability.

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