Oppenheimer Trivia
0Loading crowd target
0Loading crowd target
7correct to beat the crowd
48 free Oppenheimer trivia questions with answers — entertainment quiz, new questions added Oct 2026.
Christopher Nolan's Oppenheimer won seven Oscars, made nearly a billion dollars as half of Barbenheimer, and sent a generation back to the history books. This quiz covers both the film and the physicist behind it: the cast (Cillian Murphy, Robert Downey Jr., Emily Blunt, Matt Damon, Florence Pugh), the colour and black-and-white structure, the IMAX film stock Kodak invented for it, and the 57-day shoot at Ghost Ranch; and the real story of J. Robert Oppenheimer, from Göttingen and Berkeley to Los Alamos, Trinity, the Truman meeting and the 1954 security hearing. Easy questions ask who directed the film and who plays Oppenheimer. Harder ones want the biography it was based on, the New Mexico town where the Trinity scene was staged, the yield of the actual test, who wrote the score, why the film reached Japan eight months late, and when the US government finally vacated the 1954 clearance revocation. Every answer was checked against Wikipedia's articles on the film, on Oppenheimer, on the Trinity test and on the security hearing, and each question carries the sentence that backs it up. Made for film buffs, history teachers and pub quiz hosts.
30 of 48 questions with answers and explanations. Play the quiz
Q 01Which actress plays Jean Tatlock, Oppenheimer's lover, in the 2023 film?
Florence Pugh
Florence Pugh. In India and parts of the Middle East, cinemas showed a version in which a computer-generated black dress covers her during a nude scene.
Q 02Who plays J. Robert Oppenheimer in the 2023 film?
Cillian Murphy
Cillian Murphy. Nolan sent him photos of a rail-thin David Bowie in his tailored late-1970s suits as the model for the physicist's silhouette.
Q 03Robert Downey Jr. won an Oscar for playing which figure in Oppenheimer?
Lewis Strauss
Lewis Strauss. The Atomic Energy Commission chairman helped strip Oppenheimer of his security clearance, then saw the Senate reject his own nomination as Commerce Secretary in 1959.
Q 04Which 2005 biography is the film Oppenheimer based on?
American Prometheus
American Prometheus. Sam Mendes optioned it as soon as it was published, and Oliver Stone later turned the project down, saying he couldn't find his way to its essence.
Q 05Who plays General Leslie Groves, the Manhattan Project's military head, in Oppenheimer?
Matt Damon
Matt Damon. He had agreed with his wife in couples therapy to take a break from acting, with one exception: a call from Christopher Nolan.
Q 06Emily Blunt plays which Oppenheimer in the 2023 film?
Kitty Oppenheimer
Kitty Oppenheimer. A botanist and former Communist Party member, she met Robert while married to her third husband, divorced, and married him in 1940.
Q 07Which Nobel-winning physicist does Kenneth Branagh play in Oppenheimer?
Niels Bohr
Niels Bohr. He fled Nazi-occupied Denmark, was flown on to Britain, and consulted at Los Alamos under the alias Nicholas Baker.
Q 08Benny Safdie plays which Hungarian-born physicist, who testified against Oppenheimer at his 1954 hearing?
Edward Teller
Edward Teller. Nolan cast Safdie after phoning Paul Thomas Anderson, who had directed him in Licorice Pizza and gave the strongest possible endorsement.
Q 09Which actor plays President Truman, who calls Oppenheimer a 'crybaby' in the 2023 film?
Gary Oldman
Gary Oldman. He appears in just one scene, and the film moves the insult: the real Truman called the physicist a crybaby afterwards, not as he left the Oval Office.
Q 10Which actor plays David Hill, the physicist whose late testimony turns a Senate hearing in Oppenheimer?
Rami Malek
Rami Malek. His testimony helps sink a Cabinet nomination in the final act, though the real David Hill was far from the only witness to speak against the nominee.
Q 11What does Oppenheimer's switch between colour and monochrome signal?
Subjective scenes in colour, objective ones in monochrome
Subjective scenes in colour, objective ones in monochrome. No black-and-white IMAX film stock existed, so Kodak created one specifically for the production.
Q 12The crew rebuilt 1940s Los Alamos at which site, long the summer home of painter Georgia O'Keeffe?
Ghost Ranch, New Mexico
Ghost Ranch, New Mexico. The real Los Alamos was ruled out as too modern, down to the Starbucks on its main street, so the crew built its own town from scratch.
Q 13Nolan cut about 30 days from Oppenheimer's shoot to pay for what?
Q 21Why did Oppenheimer's cast leave its London premiere before the film was shown?
An actors' strike was starting
An actors' strike was starting. Nolan told the audience his stars had left to write their picket signs; the red carpet had been moved up an hour so they could walk it first.
Q 22Which country waited eight months for Oppenheimer, until an independent distributor released it in March 2024?
Japan
Japan. The studio's usual local partner passed on it, and Bitters End released it only after what it called months of thoughtful dialogue about the subject's sensitivity there.
Q 23Tom Conti plays which Nobel-winning physicist in Oppenheimer?
Albert Einstein
The sets
The sets. When the budget could not cover everything his production designer wanted to build, Nolan said he would go and do his homework, and came back with a schedule cut from about 85 days to 57.
Q 14How did Nolan's crew create the Trinity test fireball in Oppenheimer?
Real explosions shot in camera
Real explosions shot in camera. The crew burned gasoline, propane, aluminium powder and magnesium, and because no blast could match the real one's size, used camera trickery to make it look vast.
Q 15Who composed Oppenheimer's score, built around a solo violin?
Ludwig Göransson
Ludwig Göransson. Nolan suggested the violin because a fretless instrument can turn from romantic to neurotic in a split second, like the physicist's own nerves.
Q 16Which cinematographer won an Oscar for shooting Oppenheimer on large-format IMAX film?
Hoyte van Hoytema
Hoyte van Hoytema. IMAX cameras could never get close enough for an intimate close-up, so his team built new lenses, including a probe lens for filming tiny practical effects.
Q 17Which film opened in cinemas on the same day as Oppenheimer?
Barbie
Barbie. Audiences treated the pairing, nicknamed Barbenheimer, as a double bill instead of a rivalry, and Tom Cruise shared photos of his tickets to both.
Q 18After Nolan left Warner Bros., which studio won the contest to release Oppenheimer?
Universal
Universal. It accepted Nolan's terms, including a long exclusive run in cinemas and a promise to release no other new film for three weeks either side of opening.
Q 19Which record did Oppenheimer take from Bohemian Rhapsody in September 2023?
Highest-grossing biographical film
Highest-grossing biographical film. It passed the Queen biopic about two months after opening, then lost the record in 2026 to Michael, the Michael Jackson film.
Q 20Oppenheimer was Nolan's first film to receive an R rating since which 2002 movie?
Insomnia
Insomnia. The rating board cited some sexuality, nudity and language, after two decades in which every film Nolan made went out as a PG-13.
Albert Einstein. The film has Oppenheimer bring him the fear that a bomb could set the atmosphere alight; in reality he took that worry to another physicist.
Q 24Oppenheimer claimed the J in his name stood for nothing, but which first name is on his birth certificate?
Julius
Julius. It was his father's name; his brother Frank guessed the bare initial was a nod to naming the eldest son after him without making Robert a junior.
Q 25At which German university did Oppenheimer earn his PhD in 1927?
Göttingen
Göttingen. At Cambridge he had found his talent was for theory, not the laboratory, so he took up Max Born's invitation to Germany just as quantum mechanics was being worked out there.
Q 26The future physicist Oppenheimer majored in which subject at Harvard?
Chemistry
Chemistry. He took six courses a term instead of the usual four to make up for a year lost to illness, and only later decided his real passion was physics.
Q 27Which two universities did Oppenheimer teach at simultaneously in the 1930s?
Berkeley and Caltech
Berkeley and Caltech. At Berkeley he grew so close to Ernest Lawrence, inventor of the cyclotron, that Lawrence named a son Robert after him.
Q 28What joking Spanish name did Oppenheimer give the New Mexico ranch he leased and later bought?
Perro Caliente
Perro Caliente. It is Spanish for hot dog, which is said to be what he shouted on hearing the place could be leased, while recovering there from a mild case of tuberculosis.
Q 29What stood on the Los Alamos mesa before Oppenheimer's laboratory?
Boys' school
A boys' school. Oppenheimer favoured the mesa after touring it with Groves, and the Army bought the school out to build the laboratory on its grounds.
Q 30What did the Army blame for the Trinity test's blast?
An ammunition dump
An ammunition dump. The press releases were written in advance, including one for an evacuation that blamed gas shells, and the truth stayed secret until after Hiroshima.