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Movie poster for The Man Who Knew Infinity (2016)

The Man Who Knew Infinity

“What does it take to prove the impossible?”

2016
1h 48m
Director: Matt Brown
Play trailer

Overview

Growing up poor in Madras, India, Srinivasa Ramanujan Iyengar earns admittance to Cambridge University during WWI, where he becomes a pioneer in mathematical theories with the guidance of his professor, G.H. Hardy.

Cast

12 people

Audience Opinions

Audience 7.1/10
"An emotional, respectful biopic about Ramanujan powered by strong performances, yet told in a familiar and sometimes sluggish way."

The relationship between Ramanujan and Hardy, brought to life by Dev Patel and Jeremy Irons, is widely praised as the film’s emotional engine, with many calling the story moving, humane, and surprisingly accessible even for those who dislike mathematics. At the same time, the conventional biopic structure, slow pacing in the early India sections, a soapy and partly fictionalized home-life subplot, and limited exploration of Ramanujan’s actual mathematical breakthroughs leave some viewers wanting a bolder, more insightful take.

What viewers praise
  • Powerful lead acting Dev Patel and Jeremy Irons receive frequent praise for nuanced, heartfelt portrayals that make Ramanujan and Hardy feel vivid and human.
  • Engaging central friendship The evolving mentor-partner bond between Ramanujan and Hardy is seen as the most compelling and emotionally resonant part of the film.
  • Inspiring true-life story Ramanujan’s rise from poverty in India to groundbreaking work at Cambridge is regarded as an inspiring, underrated story worth discovering.
  • Accessible treatment of math The script gives just enough mathematical context to convey Ramanujan’s genius while keeping the focus on characters, so non-specialists can follow and feel invested.
  • Atmospheric period setting Viewers compliment the evocative visuals, costumes, and locations that convincingly evoke early 20th century India and Trinity College, Cambridge.
Common complaints
  • Conventional biopic formula The narrative hits familiar beats and is often described as safe and predictable compared with other modern scientist biopics.
  • Slow, uneven pacing Several viewers find the early Madras segments and some personal-life scenes slow or uneventful compared with the Cambridge material.
  • Weak romantic storyline The expanded, fictionalized marriage subplot is criticized as melodramatic and less engaging than the academic and cultural conflicts.
  • Shallow mathematical detail Those hoping to see Ramanujan’s ideas unpacked in depth feel that the film barely touches what made his work so revolutionary.
  • Limited tension or payoff Compared with films about codebreaking or wartime stakes, the story is seen as lacking a clear climax or high-pressure breakthrough moment.
Recommended for
Biographical drama viewers Mathematics and science buffs Jeremy Irons fans Dev Patel fans Inspirational true-story seekers Period drama enthusiasts

Buzz & Rumors

Public reports

THE MAN WHO KNEW INFINITY: Whitewash Demands, Child-Bride Backlash & The Wasp That Attacked Dev Patel

Turns out the quiet little math biopic has a backstage history wilder than any prestige Oscar hopeful. From Hollywood execs begging for a white love interest to Dev Patel being taken down by a deadly… wasp, here’s the real-world drama behind The Man Who Knew Infinity.


Scandals & Controversies: “Give Him a White Girlfriend”

  • Hollywood’s big idea for “fixing” Ramanujan’s story?

According to computer scientist Scott Aaronson’s write‑up on the film, director Matthew Brown spent years trying to get the movie financed and was straight-up told he could get the money if he made Ramanujan fall in love with a white nurse in England — a completely fabricated romance designed so they could cast a British starlet and “sell tickets” . Brown refused, and the project languished.

  • Sanitizing the child bride

In reality, Ramanujan’s wife Janaki was about 10 years old when they married; he was 21. Multiple pieces on Ramanujan’s life point out this uncomfortable fact, and Indian commentators have complained that the movie’s “love story is skewed,” because it presents Janaki as an adult partner and quietly erases the child marriage context . An Observer review calls out that in real life she was “only ten years old” at marriage and criticizes the film for soft-pedaling that history . Fans on forums and Q&A sites have been asking, sometimes angrily, why the film chose an adult actress and never explains the age gap, seeing it as a deliberate soft-focus rewrite to make Western audiences more comfortable [6].

  • Roughing up the racism

Aaronson notes that the movie cranks up the overt racism: Ramanujan gets punched and harassed by British soldiers and humiliated by a hostile professor — scenes that critics say are probably exaggerated for drama compared with the more subtle, institutional prejudice he actually faced [1]. Some math and physics bloggers argue the film “likely overplays” the open violence, trading nuance for easy villains .


On‑Set Drama: Dev Patel vs. The Wasp (and the River Cam)

  • A stunt that probably got cut

While filming at Trinity College, Cambridge, Dev Patel had to fall into the River Cam in front of tourists for a scene Empire suspected might not even make the final cut . Imagine freezing water, gawking crowds, and then knowing the editor might just delete your big splash.

  • The wasp attack during first “date” with his co‑star

In the most Dev-Patel rom‑com moment ever, he described meeting Devika Bhise (who plays Janaki) on set, trying to be charming… when a rogue Trinity College wasp stung him mid‑conversation. Patel later joked he was trying to be all suave and Sean Connery-esque and that the sting “freaked the shit out of me!” [8]. Not exactly the smooth genius vibe.

  • Cheating on the math

Jeremy Irons openly admitted they were going to “cheat, cheat, cheat” on the hardcore math talk — with someone literally reading lines into his earpiece so he could rattle off equations convincingly [8]. He quipped that whatever grade he got in school maths “had a minus at the end of it” [8]. Mathematicians have since roasted the film’s “Great Man” portrayal and its fuzzy handling of Hardy’s philosophy in Reddit threads .


Romance Rumors & Off‑Screen Heartbreak

  • The Freida Pinto breakup cloud

Dev Patel and Freida Pinto ended their six‑year relationship in late 2014, right around the time Infinity was gearing up for release and festival play. In later interviews, Pinto described the split as a major, soul‑searching life change [2]. On Bollywood gossip boards, there are unverified claims that Pinto’s ex‑fiancé once blamed Patel for an earlier breakup and even texted him angrily, “reminding him Freida was engaged,” with fans speculating that the long‑running relationship drama fed into Patel’s emotionally raw performance as an isolated Ramanujan [4]. This is firmly in the rumor has it category, but it’s become part of his off‑screen lore.

  • The not‑actually-a-set romance

For the record: despite the usual fan speculation, Patel did not start dating co‑star Devika Bhise. His now‑longterm partner, Australian actress Tilda Cobham‑Hervey, entered the picture later — they met on the set of Hotel Mumbai in 2016, long after The Man Who Knew Infinity wrapped .


Wild Trivia & Long-Game Hustle

  • Ten‑year grind to get it made

Between studio resistance, the “white nurse” demand, and Hollywood’s general allergy to math and brown-skinned geniuses, Brown’s passion project reportedly took around a decade to get funded and shot [1][3]. Multiple talks and interviews about the film mention this epic struggle as the reason the movie ended up with indie-style backing instead of big‑studio muscle [3].

  • First feature ever filmed at Trinity College

Variety and Trinity College’s own news page both highlight that this was the first feature film ever allowed to shoot at Trinity — Ramanujan’s actual college [2][9]. The production spent weeks there, with Patel admitting he felt genuinely humbled standing under the plaque honoring the real man whose life he was borrowing [8].


Entertainment rumors and trivia aggregated from public reporting. Treat speculation as unverified unless a cited source confirms it.