History Retcon / DCExtendedUniverse

** The fight against a revived Superman sees Batman making use of deflecting gauntlets that Alfred built to absorb Superman's EyeBeams. In the 2017 version, Superman [[NeckLift grabbed him by the chin]] and threw a line from ''Film/BatmanVSupermanDawnOfJustice'' ("Do you bleed?!") back at him.

* At the end of ''Film/BatmanVSupermanDawnOfJustice'', Franchise/WonderWoman states that she abandoned the world of men one hundred years ago, with the clear implication that she gave up on humanity after her experiences in the First World War. However, when we actually see those events in [[Film/WonderWoman2017 her own film]] she comes close to the DespairEventHorizon after [[spoiler: Steve Trevor's death]], but doesn't cross it, rejects [[spoiler: Ares']] HumansAreBastards worldview, and is not shown abandoning humanity at the end. ''Film/JusticeLeague2017'' reinforces this further as, while it doesn't get specific, it does state that Wonder Woman came to humanity's defense many times in between 1918 and the events of ''Dawn of Justice''. Made explicit with ''Film/WonderWoman1984'', where Wonder Woman is an active superhero during UsefulNotes/TheEighties, though to maintain continuity she takes some efforts to conceal her involvement in heroic activity.
* For a "softer" retcon, we have Superman's personality and relationship to the world. ''Film/ManOfSteel'' and ''Film/BatmanVSupermanDawnOfJustice'' gave him an AdaptationalAngstUpgrade and made BewareTheSuperman a major plot point, while ''Film/{{Justice League|2017}}'' basically drops these tropes and tries to convince the audience that no, he was ''always'' this friendly and ''everybody'' loved him, really.
* ''Film/{{Aquaman|2018}}'' drastically altered many aspects of Arthur Curry's personality and backstory established in previous films. Most notably, Arthur went from blaming his mother Queen Atlanna for her parental abandonment in ''Justice League'' to blaming Atlantis for arresting and [[spoiler: apparently]] executing her for marrying his human father Thomas. Also, Mera's hair is bright red instead of the more common redhead color she has in both versions of ''Justice League''.

** Darkseid is very much involved in the story instead of just getting named. He led the invasion of Earth in the past and killed a Green Lantern, where it was Steppenwolf who did this in the 2017 film.
** Steppenwolf's design has changed and he wears a collapsible, dynamically morphing armor. His personality and motivations are also different, being more clearly driven to prove himself to Darkseid and being more of a NoNonsenseNemesis instead of a bombastic and sadistic {{jerkass}}.
** Steppenwolf makes use of a MindProbe device to find the Mother Boxes, whereas in the 2017 film he only uses JackBauerInterrogationTechnique.

** The dynamic between Victor and Silas Stone plays out differently. Silas is more estranged and his son himself accuses him of having "created a monster". And [[spoiler:Silas dies]] instead of having a HappyEnding.
** Victor is more serious overall as well, with no quips nor a [[WesternAnimation/TeenTitans certain catchphrase]] being used this time around.
** Barry Allen/Flash doesn't save people by moving them around at SuperSpeed in the tunnels battle. Instead, he uses his speed to prevent debris from falling on them (moving people around at his speed would be fatal to them). The only person he moves around to safety is Iris West, and he takes extreme care when doing so, no moving her across a long distance either.
** The League doesn't have a conflict over reviving Superman (but Aquaman does express grave reservations about it and doubts that [[CameBackWrong it's really Superman at first]]), and Bruce isn't an AdaptationalJerkass anymore (what with reminding Diana of Steve Trevor for mockery in the theatrical version).

** About the [[https://youtu.be/VtoaayKwd8w "Mother Box Origins" trailer]], Creator/ZackSnyder confirmed that Diana/Wonder Woman first saw action during UsefulNotes/TheCrimeanWar and not UsefulNotes/WorldWarI unlike her [[Film/WonderWoman2017 solo film debut]] (the helmets at her feet) and that Arthur/Aquaman's father is dead by the time of the film (there's a funeral urn by his side) while he's very much alive (played by Creator/TemueraMorrison) in his solo film.

** The League doesn't have a conflict over reviving Superman (but Aquaman does express grave reservations about it and doubts that [[CameBackWrong it's really Superman at first), and Bruce isn't an AdaptationalJerkass anymore (what with reminding Diana of Steve Trevor for mockery in the theatrical version).

** The League doesn't have a conflict over reviving Superman, and Bruce isn't an AdaptationalJerkass anymore (what with reminding Diana of Steve Trevor for mockery in the theatrical version).

** The FinalBattle plays out differently: Batman stays outside the fortress to destroy Parademon defenses and keep them at bay (instead of fighting inside and running out of blaster ammo), Cyborg needs the energy that Flash produces when running to get inside the Unity instead of simply interacting with it, neither Flash nor Superman need to save townsfolk since the town is abandoned, Steppenwolf's axe is destroyed by Superman himself instead of Wonder Woman (and Superman only needs a small puff to freeze it instead of a sustained blow), and the unity kills every Justice League member which prompts Flash to run as fast as he can to TimeTravel and [[SetRightWhatOnceWentWrong prevent this from happening]]. Also, Steppenwolf doesn't tear off Cyborg's leg.

** Steppenwolf's design has changed and he wears a collapsible armor. His personality and motivations are also different, being more clearly driven to prove himself to Darkseid and being more of a NoNonsenseNemesis instead of a bombastic and sadistic {{jerkass}}.

* At the end of ''Film/BatmanVSupermanDawnOfJustice'', Franchise/WonderWoman states that she abandoned the world of men one hundred years ago, with the clear implication that she gave up on humanity after her experiences in the First World War. However, when we actually see those events in [[Film/WonderWoman2017 her own film]] she comes close to the DespairEventHorizon after [[spoiler: Steve Trevor's death]], but doesn't cross it, rejects [[spoiler: Ares']] HumansAreBastards worldview, and is not shown abandoning humanity at the end. ''Film/JusticeLeague2017'' reinforces this further as, while it doesn't get specific, it does state that Wonder Woman came to humanity's defense many times in between 1918 and the events of ''Dawn of Justice''.