!!The original book:
* AdaptationDisplacement: Happily averted despite its many adaptations.
* RealitySubtext: Gatsby and Daisy's relationship is not dissimilar to that of Scott and Zelda Fitzgerald, though it has more in common with the relationship between Scott Fitzgerald and Ginevra King.
* WriteWhatYouKnow: It's believed that Daisy was based off of Ginevra King, Fitzgerald's ex-girlfriend who was also a rich Chicago socialite. Likewise, Tom is believed to have been based off of William Mitchell, the man who Ginevra eventually married. Fitzgerald himself confirmed that Jordan was based off of Edith Cummings, one of Ginevra's friends.

!!The 1926 film:
* DisownedAdaptation: Scott and Zelda Fitzgerald walked out of a screening of the 1926 silent film (the only one released during their lifetimes), which emphasized the party scenes and their scandalous elements.
* MissingEpisode: The 1926 silent film adaptation is a famous lost film. Only [[https://www.youtube.com/watch?v=luBlFlCYRXc a one-minute trailer]] is known to exist.

!! The 2013 film:
* ActorAllusion: Nick reaches for the last drink on a tray too late and it's snatched by someone else. That exact thing happened to Peter Parker in ''Film/SpiderMan2''.
* DawsonCasting: Carey Mulligan (26), who played Daisy in a flashback when the character was 18.
* FakeAmerican: Jordan, Tom, Myrtle, Catherine, and George are played by Australians. Daisy is played by Creator/CareyMulligan who is British while Wolfshiem is played by UsefulNotes/{{Bollywood}} actor, Creator/AmitabhBachchan.
* RealitySubtext: Leonardo [=DiCaprio=] and Tobey Maguire are actually good friends in real life.
* SeparatedAtBirthCasting: The actors who play young and teen Gatsby actually look and act very convincingly like Creator/LeonardoDiCaprio.
* WhatCouldHaveBeen: Creator/BenAffleck was offered the role of Tom Buchanan, but had to turn it down due to scheduling conflicts with ''Film/{{Argo}}''.