It's a special time for comic book fans. The superheroes who have had the most amazing adventures on the four-color page that any group of writers and artists could dream up are now the biggest things on TV and in the movies, with Marvel leading the charge. For thirteen years, audiences have thrilled at the ongoing stories of the Marvel Cinematic Universe, turning even former C-list characters like Star-Lord into household names.

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What makes it all so special to the old-school fans is just how many of the MCU's stories that are told in theaters and on TV have their roots in some of the best stories from the comics. From Civil War to the Infinity Gauntlet, readers have gotten to see some of their favorite bits recreated in big-budget live-action. But even with the ability to see their heroes in the flesh, there are some stories everyone hopes never make it to the MCU.

10 Spider-Man's Clone Saga

Spider-Man Scarlet Spider Clone Saga

One of the most derided stories in all comics, the Spider-Man Clone Saga was a years-long journey into a largely unplanned storyline that angered fans and nearly destroyed Spider-Man forever.

The story, which saw the revelation that the Peter Parker everyone loved was not the real Peter Parker but a clone created by the Jackal, ended with Peter and Mary Jane going off to live a non-superhero life while Ben Reilly - the real Peter Parker - took over Spider-Man duties. Thanks to Andrew Goletz, the whole history of what happened behind the scenes, and why things got so out of hand, has been shared with the world.

9 Baby Blue Tony Stark

Young Tony Stark in his blue skin armor in Ultimate Iron Man

The Ultimate Universe was Marvel's attempt to update their biggest characters for the 21st century, cleaning out decades of continuity and making the biggest heroes in the Marvel toybox more easily accessible to new readers. These days, the Ultimate Universe is remembered for introducing Miles Morales, but there is one story everyone wants to forget.

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Written by Orson Scott Card with art by Andy Kubert, Ultimate Iron Man dove into the origin of the Ultimate Universe's Tony Stark, revealing something no one liked - Tony wasn't a genius because he was smart, he was a genius because of a science experiment gone wrong. Making it worse, when Tony was a baby, he suffered from extreme dermal sensitivity, and to protect him, his father covered him in blue "skin armor". Thankfully, this isn't part of the movie universe.

8 Captain Marvel's Problematic Pregnancy

Ms. Marvel Carol Danvers Pregnant

The world may know Carol Danvers as Captain Marvel, but one story from Carol's time as Ms. Marvel that no one likes to think about comes from the pages of Avengers issues #197-200.

In these three issues, Carol falls ill before learning that she is somehow three months pregnant. In a matter of hours, her pregnancy is even further along, with her now being six months pregnant. Before long, Carol gave birth to a baby boy, and not too long after that, the baby boy was a grown man who revealed that he is the son of Immortus who somehow impregnated Carol with himself so that he could escape limbo. Marvel has rightfully ignored this story.

7 The Punisher's Problematic Undercover Work

Punisher had plastic surgery and became a black man

Fans were understandably upset when the Punisher series on Netflix was canceled. There were so many stories left to tell about Marvel's deadliest vigilante, and fans were more than ready to watch them. But there is one story from the comics that would never have made it to live-action; the time Punisher underwent plastic surgery and became a Black man.

The story, written by Mike Baron in 1991, was instantly derided by readers and before long, Frank Castle's pigment returned to its usual Italian American tone, ending one of the most problematic stories in modern comics.

6 Captain America's Time As A Werewolf

Captain America Capwolf

On paper, Captain America becoming a werewolf sounds kind of awesome, but as the story by Mark Gruenwald and Rik Levins proved, it is actually pretty bad. Taking place in Captain America #402-408, Captain America became a werewolf after being injected with a serum by Dredmund, The Demon Druid.

Thanks to the super-soldier serum, Cap was able to keep his human mind while in werewolf form, and after bearing up the Man-Wolf, he became the leader of the werewolves and led them in an uprising, taking down Dredmund and finding the antidote. While Capwolf has gained a cult following, it's pretty unlikely that this story will be turned into Captain America 4.

5 Hulk's Circus Career

Hulk hides out in the circus in Avengers #1

In the earliest days of Marvel, Hulk didn't want to hang out with the other heroes and one way he hid from the likes of Iron Man and Thor, was by pretending to be a robot clown in a circus, as seen in Stan Lee and Jack Kirby's Avengers #1.

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Going by "Mechano, the Marvel of the Age" Hulk delighted circus attendees by juggling horses and elephants, though it must have been a nightmare for the animals he used. This aspect of how the Avengers came together was left out of the 2012 film.

4 Spider-Man's Spider Totem

An image of Spider-Man talking to the Spider Totem from Marvel Comics

veryone knows that Peter Parker gained his superpowers when he was bitten by a radioactive spider, turning him into Spider-Man. But in 2002, J. Michael Straczynski and Mike Deodato Jr. added a wrinkle to the Wall-Crawler's origin when they revealed that when Peter gained his powers, he became the host of a multiversal entity known as "The Other," one of the five "Great Totems" connected to a mystical force known as the Web of Life and Destiny. While the Spider Totems don't come up too often in the comics, but they are still around. So far, they haven't shown up in any of the Spider-Man movies.

3 Hawkeye's Tunic Look

Hawkeye Tunic

Not everything that the MCU has properly ignored is a storyline. Take, for example, Hawkeye's tunic look. The most famous archer in the Marvel Universe didn't keep this costume for long, and it can only be imagined that Jeremy Renner is happy he never had to wear this look on set.

Of course, there's still time. In theory, this Hawkeye costume could show up on the upcoming Disney Plus series, and if there is a second season, that gives the show's creators another chance to put Renner in a tunic.

2 Aunt May's Marriage To Doctor Octopus

Otto Octavius marries Aunt May Parker

In the MCU, Aunt May was dating Happy Hogan, a relationship that made Peter pretty uncomfortable. But comic readers know just how much worse things could have been for Peter, like the time Aunt May nearly married Doctor Octopus.

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Coming from Amazing Spider-Man #114 by Gerry Conway and John Romita, Spider-Man is shocked to find that his sweet old Aunt May has fallen in love with a seemingly reformed Otto Octavius and is going to marry him. Luckily, Peter learns the truth before the vows are exchanged; Doc Ock only wanted to marry Aunt May to get his hands on a nuclear power plant that Aunt May had inherited.

1 Hank Pym And Janet Van Dyne's Marital Problems

Hank Pym hits Janet van Dyne in Marvel Comics

While the MCU hasn't had much time to show fans the relationship between Hank Pym and Janet Van Dyne in the Ant-Man films, it seems unlikely that they'll bring in one of the most indefensible parts of their marriage from the comics.

In Avengers #213, written by James Shooter with art by Bob Hall, Hank Pym, at that time calling himself Yellowjacket, is under review as a member of the team after his reckless behavior in battle. To ensure that the Avengers don't fire him, Hank creates an android that only he can defeat in order to prove his worth, but when Janet tries to talk Hank out of his plan, he hits her. Needless to say, no one wants Hank to be a spousal abuser in the movies.

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