History AdaptationRelationshipOverhaul / MarvelCinematicUniverse

** Natasha and Yelena never trained together in the comics, as Natasha is several ''decades'' older than Yelena; Yelena was also intended to be Natasha's SuperiorSuccessor, but ended up as an EvilCounterpart to Natasha. Here, Yelena is five years younger than Natasha and they were reared as sisters for a few years, trained at the Red Room in the same timeframe, and are ultimately allies.

* ''Film/{{The Incredible Hulk|2008}}'': In the comics; Rick Jones is one of Banner's and Hulk's closest allies and Rick was indirectly responsible for the Hulk's origin, but in the MCU; The Hulk's origin is based on the [[ComicBook/UltimateMarvel Ultimate]] and [[Series/TheIncredibleHulk1977 TV Series]], where Bruce Banner transforms into the Hulk while experimenting on himself in one of General Ross's attempts to recreate the Super Soldier Serum.

* Film/MCUSpiderManTrilogy

* DemotedToExtra: In the MCU; Jones doesn't have any role like he did in the comics.

** In the ComicBook/AntMan comics, Scott Lang spent much of his comics time as a supporting character for Stark, being sort of like his sidekick. Iron Man's most famous comic book story, ''Armor Wars'', had Scott play a pivotal role. Here, he doesn't even ''meet'' Stark until ''Film/CaptainAmericaCivilWar'', which put them on opposing sides no less, and, ironically, Stark doesn't even know who he is. He only gets to act as Tony's sidekick [[spoiler:in ''Film/AvengersEndgame'' during the Time Heist, when the two are tasked with retrieving the Tesseract]].

** While Scott in the comics is also the [[LegacyCharacter Successor of Hank Pym as Ant-Man]], he usually fights crime at his own without a special relationship with Hank. In the movies, Hank acts as Scott's {{Mentor}} and [[IntergenerationalFriendship parental friend and advisor]].

** Oberst-Gruppenfuhrer Roeder's visiting Schmidt not to inspect on the progress of HYDRA's weapons programs, but to order Schmidt to report to Berlin for HYDRA's failure to stop Captain Carter, the SSR, and the Allies in a series of battles.
** HYDRA established as the Nazi Supernatural Sciences Division in Captain Carter's universe, rather than as the Nazi Deep Science Division.

* ComicBook/CaptainAmerica:

** In the Captain America comics, Sharon Carter is one of the Captain's main partners, and his most prominent love interest to boot, with Sharon and Steve frequently describing the other as the love of their life. The movies [[DecompositeCharacter divide up these roles and grant them to Black Widow and Peggy Carter]], and Sharon ends up as [[DemotedToExtra barely an acquaintance as a result]]. A relationship is [[ShipTease teased]], but unfulfilled, and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].

** He becomes a stern father figure to the young Peter Parker and is essential to his growth as Spider-Man. In the comics, Spidey didn't have such a relationship with Stark. However, Tony did have such a relationship with Peter in the Ultimate imprint, and they were friends in the lead-up to the 616 Civil War (they had a falling-out during when Peter defected to Cap’s side).
** Another major change is Tony Stark's relationship with The Mandarin [=/=][[spoiler: Xu Wenwu]], [[NamedByTheAdaptation or as he is known as]] in the MCU. In the comics, The Mandarin is Iron Man's ArchEnemy due to the former [[CreateYourOwnHero supporting the rebels who captured]] Stark, causing the latter to build the first Iron Man armor. While ''Film/IronMan1'' largely follows this (by having The Mandarin's terrorist organization, the Ten Rings, kidnap Stark), and ''Film/IronMan3'' has Stark fight [[spoiler: an impostor Mandarin by the name of Aldrich Killian, Iron Man ends up dying in ''Film/AvengersEndgame'' without [[TheUnfought ever encountering]] the ''real'' Mandarin (Xu Wenwu), or even knowing the latter's existence for that matter.]]

* In the ComicBook/BlackPanther comics, Queen Ramonda is T’Challa’s step mother and Shuri is his half-sister. In ''Film/BlackPanther2018'', they are his biological mom and full sister respectively.

*** With the Avengers themselves. He became a superhero with dreams of becoming an Avenger, and is considered a close ally of them right until becoming a member. In the comics, Peter didn't join the Avengers until the '90s, and even then, only as a reserve member (where he took part in stories that featured ''everyone''). Historically, Spidey has been ''much'' closer to the ComicBook/FantasticFour as an HonoraryTrueCompanion, and has actually served on the FF before (notably during the ''[[ComicBook/{{FF}} Future Foundation]]'' era) with Reed being his father figure and Johnny being HeterosexualLifePartners with him, and everyone regarding him as their closest family outside each other. Rights issues at the time with Fox (before the merger) meant that the Fantastic Four had to be swapped for the Avengers.

* Captain America:

** In the ComicBook/CaptainAmerica comics, Sharon Carter is one of the Captain's main partners, and his most prominent love interest to boot, with Sharon and Steve frequently describing the other as the love of their life. The movies [[DecompositeCharacter divide up these roles and grant them to Black Widow and Peggy Carter]], and Sharon ends up as [[DemotedToExtra barely an acquaintance as a result]]. A relationship is [[ShipTease teased]], but unfulfilled, and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].

** In the ComicBook/CaptainAmerica comics, Sharon Carter is one of the Captain's main partners, and his most prominent love interest to boot, with Sharon and Steve frequently describing the other as the love of their life. The movies [[DecompositeCharacter divide up these roles and grant them to Black Widow and Peggy Carter]], and Sharon ends up as [[DemotedToExtra barely an acquaintance as a result]]. A relationship is [[ShipTease teased]], but [[ShipSinking unfulfilled]], and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].

** '''[[Characters/MCUPeterParker Peter Parker / Spider-Man]]''': The MCU plays up ComicBook/SpiderMan’s status as a KidHero, and that informs how many other characters interact with him.

* [[Characters/MCUIronMan Tony Stark / Iron Man]]:

** '''[[Characters/MCUSpiderMan Peter Parker / Spider-Man]]''': The MCU plays up ComicBook/SpiderMan’s status as a KidHero, and that informs how many other characters interact with him.

** Melina Vostokoff, known as Iron Maiden, and Red Guardian were villains in the comics, with very antagonistic relationships with Natasha. Melina was defined by living in Natasha's shadow and jealous over it, and Red Guardian was even Natasha's husband at one time! Here, partly to account for Natasha being aged down significantly, they are much older than her and not antagonists. Instead, they're parental figures who raised Natasha and Yelena as children for an undercover mission and [[BecomingTheMask came to genuinely care for them]], but were essentially forced to turn them over to the Red Room due to working under General Dreykov. However, they still love them as their own daughters but have trouble showing it before helping Natasha and Yelena destroy the Red Room allowed them to reconcile.

** Goose's Carol's pet in the comic, but in the movie she's the original Mar-Vell's, and later stays with Fury, while Carol remains mostly indifferent to her.

* ''[[WesternAnimation/WhatIf2021 What If...?]]'': "Recap/WhatIf?S1E1WhatIfCaptainCarterWereTheFirstAvenger?"

** In the ComicBook/AntMan comics, Scott Lang spent much of his comics time as a supporting character for Stark, being sort of like his sidekick. Iron Man's most famous comic book story, ''Armor Wars'', had Scott play a pivotal role. It's rather funny then that ''Film/CaptainAmericaCivilWar'' had them meet on opposing sides, with Stark being ''completely unaware'' of who Scott was.

** In the comics, Scott Lang spent much of his time as a supporting character for Tony Stark and assisted him in and out of the Avengers, as basically Stark's sidekick. Here, he doesn't even ''meet'' Stark until ''Civil War'', which put them on opposing sides no less, and, ironically, Stark doesn't even know who he is. He only gets to act like Tony's sidekick [[spoiler:in ''Endgame'' during the Time Heist, when the two are tasked with retrieving the Tesseract]].
** In the comics, Hank Pym is a scientific peer and close friend of Tony Stark. Here, the two have never met, and Hank holds a grudge against the Stark family for how Tony's father attempted to use his discoveries.
** While Scott in the comics is also the [[LegacyCharacter Successor of Hank Pym as Ant-Man]], he usually fights crime at his own without a special relationship with Hank. In the movies, Hank acts as Scott´s {{Mentor}} and [[IntergenerationalFriendship parental friend and advisor]].
** In the comics, Cassie lives most of her childhood with her father after her parents divorced. In the movie, she lives with her mother and her new stepdad.

** Due to a case of AdaptationalNiceGuy, Liz Allan has different relationships with Peter, Flash, and Betty in ''Film/SpiderManHomecoming''.
*** In the comics, she was Flash Thompson's high school girlfriend and long-time friend who initially joined him in picking on Peter before she warmed up to and gained a crush on the latter. In the film, Liz and Flash don't have any relationship outside of being academic decathlon teammates and she isn't too fond of him (like most of her classmates), preferring Peter from the start.

** [[spoiler: Peter Parker's most famous job is as a photographer working for J. Jonah Jameson at ''The Daily Bugle''. This doesn't happen in the MCU, because Jameson is given Spider-Man's SecretIdentity and ''outs'' him to the world in ''Film/SpiderManFarFromHome'' before ever meeting, knowing, and employing Peter Parker in any capacity. In the comics, Jameson got to know Peter as an employer and a one-sided surrogate son-nephew, even becoming an ally of Spider-Man in ''ComicBook/UltimateSpiderMan''. In Creator/ChipZdarsky's run on ''Spectacular Spider-Man'', he actually became Peter's friend and confidant.]]
** Since Eddie Brock's from a universe with no known Peter Parker or Spider-Man, Eddie doesn't have any sort of obsessive hatred for him, [[spoiler: which kept Venom from wanting to pick a fight with Peter as hinted at the end of ''Film/VenomLetThereBeCarnage''.]]

* ''[[WesternAnimation/WhatIf2021 What If...?]]'':

* ''Film/CaptainAmericaTheFirstAvenger'': The Red Skull has nothing but contempt for Adolf Hitler and his ideology, seeing him as nothing but a convenient backer to be discarded. Likewise, it's implied Hitler effectively exiled Schimdt because of his disfigurement. This is a MASSIVE change from the source material where Hitler was a mentor and father-figure to the Red Skull, who remains a fervent Nazi because of everything Hitler did for him. Hitler was also the one who conceived the Red Skull persona for Schmidt and gave him his iconic mask.
* In the ComicBook/CaptainAmerica comics, Sharon Carter is one of the Captain's main partners, and his most prominent love interest to boot, with Sharon and Steve frequently describing the other as the love of their life. The movies divide up these roles and grants them to Black Widow and Peggy Carter, and Sharon ends up as barely an acquaintance as a result. A relationship is teased, but unfulfilled, and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].
* In the comics, Pepper Potts and Happy Hogan are married; in the MCU, Pepper becomes Tony Stark’s [[OneTrueLove main love interest]] while in the comics, Tony has a ''lot'' of different relationships and other than MCU-Tony, [[HappilyMarried never settled down to found a family]]. [[WordOfGod According to Jon Favreau, Happy’s actor]], Happy is still in love with Pepper, but [[AllLoveIsUnrequited she doesn’t reciprocate]]. Later, Happy is given another romantic interest in, of all characters, Spider-Man’s Aunt May.
* The MCU takes several liberties regarding [[Characters/MCUIronMan Tony Stark / Iron Man]]'s relationship to other characters, compared to the comics.
** Howard and Maria Stark are his biological parents in the MCU. In the comics, he is actually their adopted son. His real parents were two S.H.I.E.L.D agents, his biological father being a mole for HYDRA, until he was killed by Tony's biological mother upon discovering his true colors. Tony's mother then asked the original Nick Fury to ensure her child's safety. After being tossed into an orphanage as per S.H.I.E.L.D protocol regarding unwanted pregnancies, Howard Stark learned of the baby due to being an associate of Fury and in response to the events surrounding their firstborn son Arno Stark, Howard and Maria decided to adopt Tony and the rest is history. That said, these were ''after'' the MCU started, so it was originally true to the comics at first.

** He becomes a stern father figure to the young Peter Parker and is essential to his growth as Spider-Man. In the comics, Spidey didn't have such a relationship with Stark, and if anything was closer to the Fantastic Four (who haven't yet appeared in the MCU due to film rights previously being tied to Creator/TwentiethCenturyFox). He, however, had such a relationship with Peter in the Ultimate imprint, and they were friends in the lead-up to the 616 Civil War (they had a falling-out during when Peter defected to Cap’s side).
** In the ComicBook/AntMan comics, Scott Lang spent much of his comics time as a supporting character for Stark, being sort of like his sidekick. Iron Man's most famous comic book story, ''Armor Wars'', had Scott play a pivotal role.
** In ''Film/AvengersAgeOfUltron'' Tony [[CompositeCharacter takes the role as Ultron´s creator from Hank Pym in the comics]]. Thus means Ultron now sees Tony as his ''dad'', making Tony the object of Ultron´s DaddyIssues and becoming the one he hates the most.
* The Asgardians, already overhauled and remixed from Myth/NorseMythology, are altered even further in the MCU.
Heimdall and Lady Sif are not siblings, Hela is Odin’s daughter instead of Loki’s, Frigga is Thor’s biological mother rather than step-mother, and Donald Blake and Thor are [[DecompositeCharacter two different people]], the former being Jane Foster’s [[TheGhost unseen]] ex-boyfriend.
* Maria Hill is Nick Fury's successor as director of SHIELD and a decided foil, with what little interaction they have being frosty at best. In the movies, she's his loyal NumberTwo.
* Steve and Bucky's relationship is more akin to a brotherly relationship between equals, whereas the comics had a sense of seniority due to Steve being noticeably older than Bucky (Bucky eventually caught up to Steve's age thanks to aging during his missions as the Winter Soldier) and seeing him as KidSidekick, a little brother at best.
* Bucky and Sam's relationship is much more antagonistic than in the comics, with the two always making jokes at the other's expense and not getting along, and are pretty much only connected through their mutual friendship with Steve. In the comics, the two get along very, very well even outside of both knowing Steve, and don't ever really make fun of the other.
* In the comics, Hawkeye is HeterosexualLifePartners with Captain America, due to Cap giving him a second chance as an Avenger, though [[VitriolicBestBuds they do give each other a hard time every now and then]]. He's often not keen on taking direct orders, and the only one he'll follow without question is Cap himself. In the movies, this is greatly lessened. While Hawkeye does have a respect for Cap, enough that he sided with him in the Civil War, they aren't portrayed as being close friends like they are in the source material.
* The MCU plays up ComicBook/SpiderMan’s status as a KidHero, and that informs how many other characters interact with him. Tony Stark in particular becomes a mentor and ParentalSubstitute to Peter Parker, a relationship that’s considerably dicier in the comics. As Uncle Ben has already been killed off by the time Spidey is introduced, Iron Man is functionally Peter’s only father figure in this setting.

** Goose's Carol's pet in the comic, but in the movie she's the original Mar-Vell's, and later stays with Fury, while Carol remains indifferent to her.

** Natasha and Yelena never trained together in the comics, as Natasha is several ''decades'' older than Yelena; Yelena was also intended to be Natasha's SuperiorSuccessor, but ended up as an EvilCounterpart to Natasha. Here, they were reared as sisters for a few years, trained at the Red Room in the same timeframe, and are ultimately allies.
** Melina Vostokoff, known as Iron Maiden, and Red Guardian were villains in the comics, with very antagonistic relationships with Natasha. Melina was defined by living in Natasha's shadow and jealous for it, and Red Guardian was even Natasha's husband at one time! Here, partly to account for Natasha being aged down significantly, they are much older than her and not antagonists. Instead, they're parental figures who reared Natasha and Yelena as children, and still love them as their own daughters now.

* ''Film/SpiderManFarFromHome'': Peter Parker's most famous job is as a photographer working for J. J. at ''The Daily Bugle''. This doesn't happen in the MCU, because J.J. is given Spider-Man's SecretIdentity and ''outs'' him to the world before ever meeting, knowing, and employing Peter Parker in any capacity. In comics, when Jameson got to know Peter as an employer and a one-sided surrogate son-nephew in ''ComicBook/UltimateSpiderMan'' and Creator/ChipZdarsky's run on ''Spectacular Spider-Man'', he actually became Peter's friend and confidant.

* In the comics, Bucky and Steve don't meet until after Steve is given the serum. They're still best friends, but there's a clear older brother/younger brother dynamic, with Steve as both a role model and mentor and Bucky the sidekick. In the original 1940s comics, their dynamic was very similar to the father/son-but-not-quite relationship between the contemporary Batman and Robin, but modern comics (read: Creator/EdBrubaker) shortened their age gap to four years -- giving Bucky the AgeLift that made him more of a partner than a sidekick, but still preserving the power dynamics. In the movies, they're closer in age and childhood friends, eliminating the KidSidekick trope and saving the writers from having to cram in a subplot about how they met, but this change also has the added benefit of giving skinny Steve someone who has always believed in and stuck by him. "Even when I had nothing, I had Bucky," was not something Steve could have said in the comics, no matter how much he values his friend.

** '''[[Characters/MCUSpiderMan Peter Parker / Spider-Man]]'''
*** With Tony Stark/Iron Man. Here, Peter idolizes and is always seeking to gain his approval with Stark acting as a stern father figure and [[TheMentor mentor]] to him. In the comics, they don't have such a relationship (except for the build-up to and during the Civil War), especially since Spidey actually predates Iron Man (and the Avengers) as a superhero there. If anything, he's historically been closer a friend to Captain America. The Ultimate versions had a comparable relationship, though.

** Betty Brant
*** Betty never dates Peter Parker here, and instead is a ShipperOnDeck of Liz's relationship with him, and later, [[spoiler:his relationship with MJ.]]
*** Speaking of Liz Allan, they shared a mutual jealousy in the comics due to each other's relationship with Peter, while in ''Homecoming'', they are depicted as being fairly close friends.
** Liz Allan
*** In the comics, she was Flash Thompson's high school girlfriend and long-time friend who initially joined him in picking on Peter. Here, they don't have any relationship outside of being academic decathlon teammates. In fact, Liz isn't too fond of Flash (like most of her classmates) and prefers Peter from the start.
*** She and Betty Brant shared a mutual jealousy in the comics due to competing for Peter's affections, while in ''Homecoming'', they are depicted as being fairly close friends.
** Since Eddie Brock's from a universe with no known Peter Parker or Spider-Man, Eddie doesn't have any sort of obsessive hatred for him, which kept Venom from wanting to pick a fight with him as hinted at the end of Let There Be Carnage.

* In the ComicBook/CaptainAmerica comics, ComicBook/Agent13 is one of the Captain's main partners, and his most prominent love interest to boot, with Sharon Carter and Steve frequently describing the other as the love of their life. The movies divide up these roles and grants them to Black Widow and Peggy Carter, and Sharon ends up as barely an acquaintance as a result. A relationship is teased, but unfulfilled, and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].
* In the comics, ComicBook/PepperPotts and Happy Hogan are married; in the MCU, Pepper becomes Tony Stark’s [[OneTrueLove main love interest]] while in the comics, Tony has a ''lot'' of different relationships and other than MCU-Tony, [[HappilyMarried never settled down to found a family]]. [[WordOfGod According to Jon Favreau, Happy’s actor]], Happy is still in love with Pepper, but [[AllLoveIsUnrequited she doesn’t reciprocate]]. Later, Happy is given another romantic interest in, of all characters, Spider-Man’s Aunt May.

** ''Film/{{The Avengers|2012}}'': Tony Stark / ComicBook/IronMan and Bruce Banner / [[ComicBook/IncredibleHulk the Hulk]] become friends in the film. Not only are they both experts in science, Tony recognizes something of himself in Bruce, in that they're both men CursedWithAwesome that could use their terrible powers for good. In the comics, the two aren't friends, and Tony's "science pal" is usually Reed Richards. Tony was even one of the men that exiled Bruce from Earth in the prelude to ''ComicBook/PlanetHulk''.

** Scott Lang, the second ComicBook/AntMan, spent much of his comics time as a supporting character for Stark, being sort of like his sidekick. Iron Man's most famous comic book story, ''Armor Wars'', had Scott play a pivotal role.

* ComicBook/MariaHill is Nick Fury's successor as director of SHIELD and a decided foil, with what little interaction they have being frosty at best. In the movies, she's his loyal NumberTwo.

** Carol's best friend is a fellow Air Force pilot named Maria Rambeau. In the comics, the two have little to no history with one another, and it's actually Maria's daughter [[Comicbook/MonicaRambeau Monica]] who is Carol's ally. This is because Carol's usual best friends, ComicBook/SpiderWoman (aka Jessica Drew) and Jessica ''Jones'', cannot be used in the film -- the film rights of the former belong to Creator/{{Sony}} instead of Creator/{{Disney}} who runs the MCU, while the latter starred in [[Series/JessicaJones2015 her own series]], with her ties to the superhero community AdaptedOut.

** While Matt and [[{{ComicBook/ThePunisher}} Frank Castle]] are still at odds philosophically, they have a much better relationship than in the comic books. In the comics, Matt and Frank pretty much hate each other and feel at best only grudging admiration for one another's abilities and determination. Here Matt and Frank have a relationship that is more like FriendlyEnemies and the two of them come to understand if not condone the other's point of view.

** In [Film/AvengersAgeOfUltron]] Tony [[CompositeCharacter takes the role as Ultron´s creator from Hank Pym in the comics]]. Thus means Ultron now sees Tony as his ''dad'', making Tony the object of Ultron´s DaddyIssues and becoming the one he hates the most.

* In the comics, ComicBook/PepperPotts and Happy Hogan are married; in the MCU, Pepper becomes Tony Stark’s love interest. [[WordOfGod According to Jon Favreau, Happy’s actor]], Happy is still in love with Pepper, but [[AllLoveIsUnrequited she doesn’t reciprocate]]. Later, Happy is given another romantic interest in, of all characters, Spider-Man’s Aunt May.

* The Asgardians, already overhauled and remixed from Myth/NorseMythology, are altered even further in the MCU. Heimdall and Lady Sif are not siblings, Hela is Odin’s daughter instead of Loki’s, Frigga is Thor’s biological mother rather than step-mother, and Donald Blake and Thor are [[DecompositeCharacter two different people]], the former being Jane Foster’s [[TheGhost unseen]] ex-boyfriend.

* ''Film/CaptainAmericaTheFirstAvenger'': The Red Skull has nothing but contempt for Adolf Hitler and his ideology seeing him as nothing but a convenient backer to be discarded. Likewise its implied Hitler effectively exiled Schimdt because of his disfigurement. This is a MASSIVE change from the source material where Hitler was a mentor and father-figure to the Red Skull who remains a fervent Nazi because of everything Hitler did for him. Hitler was also the one who conceived the Red Skull persona for Schmidt and gave him his iconic mask.
* ''Film/CaptainAmericaTheWinterSoldier'': Sharon Carter and Steve frequently describe the other as the love of their life in the comic. In the MCU, a relationship is teased, but unfulfilled, and ultimately [[BrokenPedestal she doesn't view Steve with fondness]].
* ''Film/{{The Avengers|2012}}'': Tony Stark / ComicBook/IronMan and Bruce Banner / [[ComicBook/IncredibleHulk the Hulk]] become friends in the film. Not only are they both experts in science, Tony recognizes something of himself in Bruce, in that they're both men CursedWithAwesome that could use their terrible powers for good. In the comics, the two aren't friends, and Tony's "science pal" is usually Reed Richards. Stark was even one of the men that exiled Bruce from Earth in the prelude to ''ComicBook/PlanetHulk''.

* The MCU takes several liberties regarding '''[[Characters/MCUIronMan Tony Stark / Iron Man]]''' relationship to other characters, compared to the comics.
** Howard and Maria Stark are his biological parents in the MCU. In the comics, he is actually their adopted son. His real parents were two S.H.I.E.L.D agents, his biological father being a mole for HYDRA, until he was killed by Tony's biological mother upon discovering his true colors. Tony's mother then asked the original Nick Fury to ensure her child's safety. After being tossed into an orphanage as per S.H.I.E.L.D protocol regarding unwanted pregnancies, Howard Stark learned of the baby due to being an associate of Nick Fury and in response to the events surrounding their firstborn son Arno Stark, Howard and Maria decided to adopt him and the rest is history. That said, these were ''after'' the MCU started, so it was originally true to the comics at first.
** He and Bruce Banner become friends in ''The Avengers''. Not only are they both experts in science, Tony recognizes something of himself in Bruce, in that they're both men CursedWithAwesome that could use their terrible powers for good. In the comics the two aren't friends, and Stark was even one of the men that exiled Bruce from Earth in the prelude to ''ComicBook/PlanetHulk''.
** He becomes a stern father figure to the young Peter Parker and is essential to his growth as Spider-Man. In the comics, Spidey didn't have such a relationship with Stark, and if anything was closer to the Fantastic Four (who haven't yet appeared in the MCU due to film rights previously being tied to Creator/TwentiethCenturyFox). He, however, had such a relationship with Peter in the Ultimate imprint, and were friends in the lead-up to the 616 Civil War (they had a falling-out during when Peter defected to Cap’s side).

* In the ComicBook/CaptainAmerica comics, ComicBook/Agent13 is one of the Captain's main partners, and his most prominent love interest to boot. The movies divide up these roles and grants them to Black Widow and Peggy Carter, and Sharon ends up as barely an acquaintance as a result.

* The MCU takes several liberties regarding Tony Stark relationship to other characters, compared to the comics.

** Peter Parker