History Trivia / Injustice2021

* ActorAllusion:
** Shazam isn't the first time Yuri Lowenthal has played [[WesternAnimation/Ben10AlienForce an older version of a]] [[Franchise/Ben10 character]] [[WesternAnimation/BatmanTheBraveAndTheBold played by]] Creator/TaraStrong

* GodNeverSaidThat: A popular idea, promulgated by fans when the movie was first announced, was this that would be the start of a six-part film series with an adaptation of each year of the comic series. However no one associated with the film ever brought up this idea. The CompressedAdaptation nature of the movie only further cemented this.

** Creator/YuriLowenthal previously voiced the Flash in ''WesternAnimation/DCSuperFriends''.

* PlayingAgainstType: Of all people, it's Creator/KevinPollak voicing The Joker this time around, aiming for a more GutturalGrowler voice instead of his more typical smart aleck voice.

** Creator/YuriLowenthal as Franchise/TheFlash, Franchise/{{Shazam}} and Mirror Master.

** Creator/DerekPhillips as [[ComicBook/{{Robin}} Nightwing]] and Franchise/{{Aquaman}}.
** Creator/ReidScott as Franchise/GreenArrow and [[Franchise/{{Batman}} Victor Zsasz]].

** Creator/KevinPollak as ComicBook/TheJoker and [[Franchise/{{Superman}} Jonathan Kent]].
** Creator/LauraBailey as [[Franchise/{{Superman}} Lois Lane]] and Rama Kushna.

* Actor Allusion:

** Creator/JustinHartley, who played ComicBook/GreenArrow in ''Series/{{Smallville}}'', voices Superman, which makes him the second person to play both Superman and GA. The first was Creator/AlanTudyk, who voiced Ollie in ''WesternAnimation/YoungJustice'' (and reprised the role in the ''Injustice'' games and ''VideoGame/InfiniteCrisis'') and was the original voice actor for the DCAMU Superman in ''WesternAnimation/JusticeLeagueWar''.
** Creator/AnsonMount is the voice of Batman, [[WesternAnimation/BatmanUnderTheRedHood a role]] [[WesternAnimation/YoungJustice he now]] [[WesternAnimation/BatmanGothamByGaslight shares with]] Creator/BruceGreenwood. Both men also played ''Franchise/StarTrek''[='=]s Christopher Pike: Mount in ''Series/StarTrekDiscovery'' and Greenwood in the [[Film/StarTrek2009 Kelvin]] [[Film/StarTrekIntoDarkness timeline]].

* PlayingAgainstType: Of all people, it's Creator/KevinPollak voicing The Joker this time around, aiming for a more GutturalGrowler voice instead of his more typical smart aleck voice. And judging by early reactions, he's proving to be well received in the role.

* TheOtherDarrin: ''None'' of the games' casts are returning to their roles for the film[[note]]Creator/FredTatasciore, who voiced Bane and Solomon Grundy, is part of the film's cast, but as Captain Atom[[/note]]:

* TheOtherDarrin: ''None'' of the games' casts are returning to their roles for the film[[note]]Creator/FredTatasciore, who voiced Bane and Solomon Grundy, is part of the film's cast, but as of August 2021, he's only known to be voicing Captain Atom[[/note]]:

** Creator/YuriLowenthal and the aforementioned Alan Tudyk have voiced both Superman and Franchise/TheFlash. As mentioned above, Tudyk was Superman in ''Justice League: War'', while Lowenthal voiced Superman in ''WesternAnimation/LegionOfSuperHeroes''. Tudyk also voiced the Flash in ''WesternAnimation/BatmanTheBraveAndTheBold'' while Lowenthal voices the Flash in the film.

* RoleReprise: Creator/ZachCallison reprises his role from the ''WesternAnimation/LegoDCComicsSuperHeroes'' special ''Magic and Monsters'' as Jimmy Olsen.

* PlayingAgainstType: Of all people, it's Creator/KevinPollak voicing The Joker this time around, aiming for a more GutturalGrowler voice instead of his more typical smart aleck voice. And judging by early reactions, he's proving to be well received in the role.

** Creator/YuriLowenthal and the aforementioned Alan Tudyk have voiced both Superman and Franchise/TheFlash. As mentioned above, Tudyk was Superman in ''Justice League: War'', while Lowenthal voiced Superman in ''WesternAnimation/LegionOfSuperHeroes''. Tydyk also voiced the Flash in ''WesternAnimation/BatmanTheBraveandTheBold'' while Lowenthal voices the Flash in the film.

* TheOtherDarrin: ''None'' of the games' casts are returning to their roles for the film[[note]]Creator/FredTatasciore, who voiced Bane and Solomon Grundy is part of the film's cast, but as of August 2021, he's only known to be voicing Captain Atom[[/note]]:

* TheOtherDarrin: ''None'' of the games' casts are returning to their roles for the film[[note]]Creator/FredTatasciore, who voiced Bane and Solomon Grundy is part of the film's cast, but as of right now, he's only known to be voicing Captain Atom[[/note]]:

* TheOtherDarrin: ''None'' of the games' casts are returning to their roles for the film[[note]]Creator/FredTatascoire, who voiced Bane and Solomon Grundy is part of the film's cast, but as of right now, he's only known to be voicing Captain Atom[[/note]]:

* TheOtherDarrin: ''None'' of the games' casts are returning for the film:

** Creator/EdwinHodge as ComicBook/MrTerrific and Killer Croc

* FullCirclePortaying: