History Trivia / ReadyPlayerOne2018

* ScrewedByTheLawyers: Even though Cline's original novel prominently featured ''Franchise/{{Ultraman}}'' fighting Mechagodzilla, Creator/WarnerBros replaced the character with the titular protagonist of ''WesternAnimation/TheIronGiant'' due to the then-ongoing legal dispute between Creator/TsuburayaProductions and Chaiyo Productions over who owned the rights to the character.

* ScrewedByTheLawyers: Even though Cline's original novel prominently featured ''Franchise/{{Ultraman}}'', Creator/WarnerBros replaced the character with the titular protagonist of ''WesternAnimation/TheIronGiant'' due to the legal dispute between Creator/TsuburayaProductions and Chaiyo Productions that was ongoing at the time of production.

* FakeAmerican: Olivia Cooke (Samantha), {{Simon Pegg}} (Og), {{Mark Rylance}} (Halliday) and {{Hannah John-Kamen}} (Zandor) are British, {{Ben Mendelsohn}} (Sorrento) is Australian.

* FakeAmerican: Olivia Cooke (Samantha), {{Simon Pegg}} (Og), and {{Mark Rylance}} (Halliday) are British, {{Ben Mendelsohn}} (Sorrento) is Australian.

* ScrewedByTheLawyers: Due to the legal dispute between Creator/TsuburayaProductions and Chaiyo Productions regarding ''Franchise/{{Ultraman}}'', Creator/WarnerBros replaced the character with the titular protagonist of ''WesternAnimation/TheIronGiant''.

* ScrewedByTheLawyers: As the rights to the ''Franchise/{{Ultraman}}'' character were still under dispute at the time, Warner Bros. replaced it with ''WesternAnimation/TheIronGiant''.

** Spielberg decided against featuring references to any of his own films, though luckily this doesn't extend to his producing other directors' work like ''Back to the Future''. Despite that, a number of VFX artists were determined to sneak in as many references as they can and hope Spielberg didn't catch all of them.

* SelfAdaptation: Ernest Cline co-wrote the film's screenplay and was deeply involved in the production process.

* SelfAdaptation: Ernest Cline co-wrote the film's screenplay.

* CelebrityParadox: Creator/BenMendelsohn plays Nolan Sorrento in this movie. He was ''Film/RogueOne''[='=]s Director Orson Krennic; the confirmation [[https://www.independent.co.uk/arts-entertainment/films/news/ready-player-one-steven-spielberg-star-wars-references-release-date-trailer-a8261806.html that]] Franchise/StarWars is actually present in this universe makes for this trope.

** The film's score was originally going to be composed by Music/JohnWilliams but due to scheduling conflicts, he left and was replaced with Music/AlanSilvestri.
*** Hilariously, This means a unexpected reunion occurs of Steven Spielberg, Alan Silvestri and [[Film/BackToTheFuture a certain Delorean...]]

* CelebrityParadox: Creator/BenMendelsohn plays Nolan Sorrento in this universe who was [[Film/RogueOne Director Orson Krennic]] now that it [[https://www.independent.co.uk/arts-entertainment/films/news/ready-player-one-steven-spielberg-star-wars-references-release-date-trailer-a8261806.html is confirmed]] that Franchise/StarWars is actually present in this movie.

** Spielberg decided against featuring references to any of his own films, though luckily this doesn't extend to his producing other directors' work like ''Back to the Future''.

** One license Spielberg wasn't able to get for the film was ''Franchise/StarWars''. Making this especially unfortunate is that he's long been good friends with George Lucas and likely could have gotten it if Lucas hadn't sold the rights to Disney a few years earlier.

** Spielberg decided against featuring references to any of his own films, though luckily this doesn't extend to his producing other directors' work like ''Back to the Future''.

** One license Spielberg wasn't able to get for the film was ''Franchise/StarWars''. Making this especially unfortunate is that he's long been good friends with George Lucas and likely could have gotten it if Lucas hadn't sold the rights to Disney a few years earlier.

** One license Spielberg wasn't able to get for the film was ''Franchise/StarWars''. Making this especially unfortunate is that he's long been good friends with George Lucas and likely could have gotten them if Lucas hadn't sold the rights to Disney a few years earlier.

*** Hilariously, This means a unexpected reunion occurs of Steven Spielberg, Alan Silvestri and [[Film/BackToTheFuture a certain Delorean...]]

** The film's score was originally going to be composed by Music/JohnWilliams but due to scheduling conflicts, he left and was replaced with Creator/AlanSilvestri.

* ActorAllusion: Tye Sheridan is yet again [[Film/XMenApocalypse a teenager who has to resort to eyewear to make his life easier]], who also has a FieryRedhead LoveInterest and is also immersed in the culture of TheEighties.

* ActorAllusion: Tye Sheridan is yet again [[Film/XMenApocalypse a teenager who has to resort to eyewear to make his life easier]].

** The film's score was originally going to be composed by Music/JohnWilliams but due to scheduling conflicts, he left and was replaced with Creator/AlanSilvestri.

** The film's score was originally going to be composed by Creator/JohnWilliams but due to scheduling conflicts, he left and was replaced with Creator/AlanSilvestri.