History Trivia / Oppenheimer

** It's also the first Nolan film since ''Film/{{Insomnia}}'' not to have Creator/MichaelCaine at all in the cast in any capacity. He couldn't travel out of the UK due to his advanced age and being busy with ''Film/TheGreatEscaper''.

* ThrowItIn: During the scene with Secretary of War Henry Stimson, the line in which he takes Kyoto off the list of targets because he honeymooned there was not in the script. Creator/JamesRemar added it based on his own research, as that actually happened.

* LateExportForYou: Rather understandably, the studio dragged its feet in releasing the movie to Japan, given that they were the ones subject to Oppenheimer's invention and are understandably sensitive about the topic of nuclear weapons. It would eventually be released in January 2024, to powerful but mixed feelings.

* LateExportForYou: After 8 months of uncertainty given the subject matter and the backlash on the "Barbenheimer" meme, the movie would eventually be released in Japan on March 29, 2024, according to the movie's Japanese distributor, Bitters End.

* HeyItsThatGuy: You may recognize Jefferson Hall (Haakon Chevalier) from ''Series/HouseOfTheDragon'', in which he plays Tyland and Jason Lannister.

** Creator/OliviaThirlby reunites with both ''Film/SnowAngels'' co-star Creator/MichaelAngarano and ''Film/TheWackness'' co-star Creator/JoshPeck.

* CastingGag:
** Creator/EmilyBlunt [[Anime/TheWindRises once again]] plays the wife of a man who invents one of World War II's most infamous weapons.
** Christopher Denham plays Klaus Fuchs in this film, after playing the fictional Jim Meeks in ''Series/{{Manhattan}}''. [[spoiler:Both characters are eventually revealed to be spying for the Soviets.]]
** Creator/JoshHartnett's role as Ernest Lawrence, given the last time Hartnett was in a three-hour historical epic, it was "Film/PearlHarbor". He got to play a role in a film about the beginning of the war around twenty years later was in a film about the end of it. Ironically, the role Hartnett played in Pearl Harbor was supposed to be played by Creator/MattDamon, but he was unavailable.

* PlayingAgainstType: Creator/RobertDowneyJr is typically associated with playing flawed but heroic {{Loveable Rogue}}s. In this film, he plays a rare antagonistic role in the form of Lewis Strauss, a vindictive and petty man who tries to destroy the titular character's career and reputation while pretending to be a supportive work colleague.

* ActorAllusion: Christopher Denham plays Klaus Fuchs in this film, after playing the fictional Jim Meeks in ''Series/{{Manhattan}}''. [[spoiler:Both characters are eventually revealed to be spying for the Soviets.]]

* CastingGag: Creator/EmilyBlunt [[Anime/TheWindRises once again]] plays the wife of a man who invents one of World War II's most infamous weapons.

* AllStarCast: Probably one of the biggest and most notable cast of actors ever assembled up there with ''Film/TheLongestDay''. According to Nolan, this was partially a practical concern: casting recognizable character actors in all the roles helped ensure that the audience could keep the dizzying array of characters straight, since Nolan was committed to not making any {{Composite Character}}s (save for Ehrenreich's Senate aide). Pretty much every character shown in the film was a real person with a documented contribution to the story. Take a deep breath: Creator/CillianMurphy, Creator/EmilyBlunt, Creator/MattDamon, Creator/RobertDowneyJr, Creator/FlorencePugh, Creator/RamiMalek, Creator/EmmaDumont, [[Creator/TheSafdieBrothers Benny Safdie]], Creator/JoshHartnett, Creator/DaneDeHaan, Creator/JackQuaid, Creator/TomConti, Creator/MatthewModine, Dylan Arnold, Olli Haaskivi, Creator/AldenEhrenreich, Creator/DavidKrumholtz, Creator/MichaelAngarano, Creator/KennethBranagh, Creator/DavidDastmalchian, Creator/JasonClarke, Creator/LouiseLombard, Creator/ScottGrimes, Creator/ChristopherDenham, Creator/JamesDArcy, Creator/CaseyAffleck, Creator/GaryOldman, Creator/DevonBostick, Creator/MatthiasSchweighofer, Creator/GustafSkarsgard, Creator/JoshPeck, Creator/AlexWolff, Creator/TonyGoldwyn, Creator/MaconBlair, Creator/JamesRemar, Creator/HarryGroener, and Creator/OliviaThirlby.

* InvisibleAdvertising: There's a lack of marketing in Japan regarding the movie which led to some uncertainty whether or not the movie will be released in the country given that it's a biopic about the scientist who made the [[UsefulNotes/AtomicBombingsOfHiroshimaAndNagasaki atomic bombs that destroyed Hiroshima and Nagasaki]]. While it's common that Japanese releases of Hollywood movies are released late, Toho-Towa, who is responsible for the distribution of the movie in the country, has yet to release a statement about its release date. In December 2023, [[https://www.reuters.com/lifestyle/oppenheimer-screen-japan-next-year-after-nuclear-controversy-2023-12-07/ it was reported]] that ''Oppenheimer'' would eventually be released in Japan in 2024 given that the movie is considered to be a front-runner during the awards season. The movie's release would be handled by Bitters End.
* LateExportForYou: After months of uncertainty given the subject matter and the backlash on the "Barbenheimer" meme, the movie would eventually be released in Japan in 2024, according to the movie's Japanese distributor, Bitters End.

** Creator/ChristopherNolan himself was very enthused to work with Creator/RobertDowneyJr on this film, as he considered his portrayal of Tony Stark in the first ''Film/IronMan1'' movie to be "one of the greatest casting decisions in the history of movies". Nolan further expressed excitement that he got to help Downey play against type by casting him as a real person rather than the movie star personas he's known for being. Downey, meanwhile, was ecstatic at receiving a call from Nolan, saying that, within the acting community, being tapped for a Nolan film is a coveted thing.

** Creator/ChristopherNolan himself was very enthused to work with Creator/RobertDowneyJr on this film, as he considered his portrayal of Tony Stark in the first ''Film/IronMan1'' movie to be "one of the greatest casting decisions in the history of movies". Nolan further expressed excitement that he got to help Downey play against type by casting him as a real person rather than the movie star personas he's known for being.

* AllStarCast: Probably one of the biggest and most notable cast of actors ever assembled. According to Nolan, this was partially a practical concern: casting recognizable character actors in all the roles helped ensure that the audience could keep the dizzying array of characters straight, since Nolan was committed to not making any {{Composite Character}}s (save for Ehrenreich's Senate aide). Pretty much every character shown in the film was a real person with a documented contribution to the story. Take a deep breath: Creator/CillianMurphy, Creator/EmilyBlunt, Creator/MattDamon, Creator/RobertDowneyJr, Creator/FlorencePugh, Creator/RamiMalek, Creator/EmmaDumont, [[Creator/TheSafdieBrothers Benny Safdie]], Creator/JoshHartnett, Creator/DaneDeHaan, Creator/JackQuaid, Creator/TomConti, Creator/MatthewModine, Dylan Arnold, Olli Haaskivi, Creator/AldenEhrenreich, Creator/DavidKrumholtz, Creator/MichaelAngarano, Creator/KennethBranagh, Creator/DavidDastmalchian, Creator/JasonClarke, Creator/LouiseLombard, Creator/ScottGrimes, Creator/ChristopherDenham, Creator/JamesDArcy, Creator/CaseyAffleck, Creator/GaryOldman, Creator/DevonBostick, Creator/MatthiasSchweighofer, Creator/GustafSkarsgard, Creator/JoshPeck, Creator/AlexWolff, Creator/TonyGoldwyn, Creator/MaconBlair, Creator/JamesRemar, Creator/HarryGroener, and Creator/OliviaThirlby.

* InvisibleAdvertising: There's a lack of marketing in Japan regarding the movie which led to some uncertainty whether or not the movie will be released in the country given that it's a biopic about the scientist who made the [[UsefulNotes/AtomicBombingsOfHiroshimaAndNagasaki atomic bombs that destroyed Hiroshima and Nagasaki]]. While it's common that Japanese releases of Hollywood movies are released late, Toho-Towa, who is responsible for the distribution of the movie in the country, has yet to release a statement about its release date. In December 2023, [[https://www.reuters.com/lifestyle/oppenheimer-screen-japan-next-year-after-nuclear-controversy-2023-12-07/ it was reported]] that ''Oppenheimer'' would eventually be released in Japan on 2024 given that the movie is considered to be a front-runner during the awards season. The movie's release would be handled by Bitter Ends.
* LateExportForYou: After months of uncertainty given the subject matter and the backlash on the "Barbieheimer" meme, the movie would eventually be released in Japan in 2024, according to the movie's Japanese distributor, Bitter Ends.

* InvisibleAdvertising: There's a lack of marketing in Japan regarding the movie which led to some uncertainty whether or not the movie will be released in the country given that it's a biopic about the scientist who made the [[UsefulNotes/AtomicBombingsOfHiroshimaAndNagasaki atomic bombs that destroyed Hiroshima and Nagasaki]]. While it's common that Japanese releases of Hollywood movies are released late, Toho-Towa, who is responsible for the distribution of the movie in the country, has yet to release a statement about its release date. In December 2023, [[https://www.reuters.com/lifestyle/oppenheimer-screen-japan-next-year-after-nuclear-controversy-2023-12-07/?taid=65714ca8af474a0001c2d315&utm_campaign=trueAnthem:+Trending+Content&utm_medium=trueAnthem&utm_source=twitter it was reported]] that ''Oppenheimer'' would eventually be released in Japan on 2024 given that the movie is considered to be a front-runner during the awards season.

* InvisibleAdvertising: There's a lack of marketing in Japan regarding the movie which led to some uncertainty whether or not the movie will be released in the country given that it's a biopic about the scientist who made the [[UsefulNotes/AtomicBombingsOfHiroshimaAndNagasaki atomic bombs that destroyed Hiroshima and Nagasaki]]. While it's common that Japanese releases of Hollywood movies are released late, Toho-Towa, who is responsible for the distribution of the movie in the country, has yet to release a statement about its release date.

* BetterExportForYou: Besides digital, it is somewhat inverted by the number of prints available in Nolan's intended/preferred film format -- they might KeepCirculatingTheTapes after a while:
** IMAX 70 mm (30 prints) - there are countries that have only one theater capable of this format, if at all;
** standard 70 mm (113 prints) - a wider aspect ratio, available as a top offering and only at top theaters in most countries;
** 35 mm (around 80 prints) - same aspect ratio as the IMAX 70 but standard screen and quality, about as close to digital.