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The Man Who Knew Infinity (2015)

PG-13 | | Biography, Drama | 29 April 2016 (USA)
1:31 | Trailer
The story of the life and academic career of the pioneer Indian mathematician, Srinivasa Ramanujan, and his friendship with his mentor, Professor G.H. Hardy.


Matt Brown (as Matthew Brown)


Matt Brown (screenplay), Matt Brown | 1 more credit »
4,380 ( 793)
1 win & 1 nomination. See more awards »





Cast overview, first billed only:
Jeremy Irons ... G.H. Hardy
Dev Patel ... S. Ramanujan
Malcolm Sinclair ... Professor Cartwright
Raghuvir Joshi Raghuvir Joshi ... Narasimha
Dhritiman Chatterjee ... Narayana Iyer (as Dhritiman Chaterji)
Stephen Fry ... Sir Francis Spring
Arundathi Nag Arundathi Nag ... Komalatammal
Devika Bhise ... Janaki
Pádraic Delaney ... Beglan
Toby Jones ... John Edensor Littlewood
Jeremy Northam ... Bertrand Russell
San Shella ... Dr. Muthu
Richard Cunningham ... Hobson
Thomas Bewley Thomas Bewley ... Baker
Anthony Calf ... Robert Alfred Herman


In the 1910s, Srinivasa Ramanujan is a man of boundless intelligence that even the abject poverty of his home in Madras, India, cannot crush. Eventually, his stellar intelligence in mathematics and his boundless confidence in both attract the attention of the noted British mathematics professor, G.H. Hardy, who invites him to further develop his computations at Trinity College at Cambridge. Forced to leave his young wife, Janaki, behind, Ramanujan finds himself in a land where both his largely intuitive mathematical theories and his cultural values run headlong into both the stringent academic requirements of his school and mentor and the prejudiced realities of a Britain heading into World War One. Facing this with a family back home determined to keep him from his wife and his own declining health, Ramanujan joins with Hardy in a mutual struggle that would define Ramanujan as one of India's greatest modern scholars who broke more than one barrier in his worlds. Written by Kenneth Chisholm (kchishol@rogers.com)

Plot Summary | Add Synopsis


An equation has no meaning to me unless it expresses a thought of god.". See more »


Biography | Drama

Motion Picture Rating (MPAA)

Rated PG-13 for some thematic elements and smoking | See all certifications »

Parents Guide:

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Did You Know?


Many of G.H. Hardy's (Jeremy Irons) lines in the film (particularly in his opening monologue and his eulogy of Ramanujan) are taken word-for-word from Hardy's own writings. See more »


Ramanujan was shown as a young man, much younger than both Hardy and Littlewood. In fact, the age difference is only 10 and 2 years between Ramanujan and Hardy and Littlewood respectively (Ramanujan was born 1887, Hardy 1877 and Littlewood 1885). See more »


G.H. Hardy: There are no proofs nor underlying laws that can determine the outcome of matters of the heart. Of that I'm sure.
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Crazy Credits

Card before the title: "Mathematics, rightly viewed, possesses not only truth but supreme beauty." - Bertrand Russell See more »


Featured in StarTalk: Jeremy Irons (2016) See more »

User Reviews

A limitless mind
5 March 2019 | by TheLittleSongbirdSee all my reviews

Biopics have always interested me, regardless of whether liberties are taken with the facts (the case with quite a lot) many of them are very well made and fascinating while also featuring lead performances that do the subject in question justice. Srinivasa Ramanujan, his story and his ground-breaking contributions to mathematics also fascinate and worth telling and looking up, and it was great to have the opportunity to have them better known.

Another selling point for me was Jeremy Irons, have always loved him if again more for his early work up to 'Lolita'. Although he is deservedly lauded by many, to me he is deserving of more credit, due to generally being restricted to (mostly) supporting roles in hit (this, 'The Borgias', 'Margin Call' and 'Henry IV' for examples) and miss ('Assassins Creed', 'Batman v Superman', 'The Time Machine', though he was among the better assets in all three, and especially 'Dungeons and Dragons' which is in every way indefensible) output since 'Lolita' that don't show his full talent, even when in a vast majority of them he is one of the bright spots, that people sometimes forget how brilliant a lot of his early work is. This does sound irrelevant, but it isn't really once saying what my thoughts on his performance here is and how it fares compared to his other work. Despite what 'The Man Who Knew Infinity' had going for it, part of me was not sure as to whether it would completely work for me, with Maths always having been one of my least favourite subjects in school. Never got my head around some of it and it didn't engage me as much as Music, History, English, French and German did, while always appreciating its importance and why it is considered a compulsory subject in primary and secondary schools up to A-Levels.

On the most part, 'The Man Who Knew Infinity' was a winner and struck a chord with me. It is nowhere near close to flawless and it falls short of being a great film. It is though well-intended and earnest, that mostly compels and much of it well written and acted. Despite inaccuracies and what made Ramanujan's work so ground-breaking not delved into enough it does try to treat this remarkable man and his story respectfully and does well in making Maths interesting and accessible. Very like 'A Beautiful Mind', 'The Man Who Knew Infinity' helped make me appreciate Maths much more.

Didn't find the scenes in Madras/India depicting Ramanujan's personal life anywhere near as interesting as the scenes in Cambridge and particularly the scenes between Ramanujan and Hardy, and to me they are the film's biggest fault. They are nicely filmed and the scenery is beautiful and it did show his motivations which was great. Unfortunately, they are also far too slow-paced (which hurt especially the first twenty five or so minutes when we don't see Hardy), mostly uneventful when the film is switching back and forth, contains very soapy writing, indifferent chemistry between Ramanujan and his wife and the acting has been described before as a mix of cold and exaggerated which sums it up very well.

There are moments of less than elegant camera work, indicating some inexperience, where some shots are disappointingly out of focus in a way that makes one slightly queasy. Can understand the criticism of 'The Man Who Knew Infinity' not doing much new for the biopic genre and playing it too conventionally and safely, with an outcome that is foreseeable and slightly on the pat side. And as said, it could have delved more into what made Ramanujan's work so ground-breaking and focused less on his personal life.

However, 'The Man Who Knew Infinity' does have quite a lot working in its favour. The photography is not consistent but quite a lot of it is nicely done and complements the beautifully evocatively rendered Indian landscapes and the authentic 1914 Cambridge setting very well. Trinity College is shown in all its glory, in both the exteriors and interiors it looks wonderful. The music may not stick in the head but it serves its purpose well, it's sympathetic, not too syrupy and it fits at least. Again, there is inconsistency in the direction, not always focused visually and very pedestrian in the scenes in Madras, but it helps make the story intriguing and accessible and is a triumph in the scenes between Ramanujan and Hardy (particularly in the latter stages), Hardy and Littlewood's scenes are also well done.

Script is mostly intelligent and sincere, not being too wordy, too complicated, too treacly or overly simple. It is especially good in Hardy's dialogue and speeches which are beautifully written (especially the "who are we to question the Ramanujan" one). Irons' Shakespearean-like delivery in that wonderful unmistakable voice he has, that always makes things that are usually dull engaging, helps quite a bit. The story once it got going engaged, moved and inspired me, didn't understand all the maths but it still intrigued and illuminated me and found myself really caring and identifying with Ramanujan, rooting for his overcoming significant adversity. The chemistry between Ramanujan and Hardy is complex, never biased, intriguing to watch develop and heartfelt, it is the heart of the film and the driving force of the drama and one of the film's biggest strengths in that it rises the film above being completely routine. The characterisation of Hardy is similarly a triumph, a far more complex character that one seems to think when first introduced to him, the most developed (more so than Ramanujan himself and that is without seeing glimpses of his personal life really) and therefore the most interesting. Really appreciated how Ramanujan's adversity is not done in a way that was overdone or pantomimic, some of it having genuine tension, and also showing the harships England were going through at the time.

Notwithstanding big reservations with how Ramanujan's family were characterised here, the acting is very good. Dev Patel may not look like Ramanujan, too young, too tall and too handsome, and may seem a miscast physically, but is still great in interpretation due to exuding more emotion, charm and passion than seen before from him by me and made me care and root for such a remarkable man. To me, this is one of his better performances and he works incredibly well with Irons, the complexities of the relationship between the two portrayed with nuance and passion. Their scenes in the second half of the film are particularly beautifully done and the ending is initially inspiring and then very touching in Hardy's tribute. Toby Jones is endearing as Littlewood and the British cast, including Anthony Calf and Jeremy Northam, are sterling and don't overplay or phone in. The acting honours though belong to Irons, who is absolutely outstanding here as Hardy and gives one of his best performances in one of not many roles in recent years to fully show how great an actor he truly is (he actually shows it in a vast majority of his work, just that too many times he is well above what he is given). Because there is a lot of meat to Hardy and Irons wrings every ounce of juice out of it without ever overplaying, his eyes, gestures and face telling so much in a remarkably subtle way, yes there is much more to Irons' appeal than his voice. It is an authoritative and sincere performance in a way that's powerfully understated, full of gravitas and never less than compelling, he brings an edge to Hardy while expertly softening it when needed in the emotional latter stages when he becomes more sympathetic. The lack of big awards attention for his performance here is in my mind criminal and like 'Dead Ringers' (except not as bad) all over again in that it was a big inexplicable oversight that year.

Summarising, a well above average film though not flawless or great, though Trinity College, the chemistry between Patel and Irons and Irons' performance are massive assets and help make it a much better film. 7/10

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English | Tamil | Sanskrit

Release Date:

29 April 2016 (USA) See more »

Also Known As:

The Man Who Knew Infinity See more »


Box Office


$10,000,000 (estimated)

Opening Weekend USA:

$80,325, 1 May 2016

Gross USA:


Cumulative Worldwide Gross:

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Technical Specs




Aspect Ratio:

2.39 : 1
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