My Sister’s Opinion: Why ‘Avengers: Age of Ultron’ is the Most Important Sequel in the Entire MCU

My foreword:

Before I had this blog where I shared with you my thoughts about movies on a daily basis my sister and I would sit in our room and discuss movies for hours on end. From tantalizing theories about the latest films to simple observations discovered after recently rewatching a movie for the umpteenth time, movies have always been a constant bonding factor between us.

I’ve shared with you my sister’s fan art but for the first time in this site’s history she is sharing her opinion on a movie and I am excited! Enjoy!

During a late-night viewing of Avengers: Age of Ultron, something dawned on me: it is the most pivotal sequel in the entire MCU. It was a crossroads to many important and promising, even unnecessary, storylines going forward. And I want to share with you these moments that shaped, and maybe is still shaping, the course of the story.



I know you’re thinking, what? X-Men? What does that have to do with anything? Yes, two X-Men characters were introduced in Age of Ultron, Scarlet Witch, and Quicksilver. Firstly, they are both mutants, a keyword when it comes to X-Men characters. In Scarlet Witch’s case, she has telekinesis, mental manipulation, levitation, and energy blasts. Her brother, Quicksilver, was granted incredible speed.

In Quicksilver/Pietro’s case, he was killed off at the end of Avengers: Age of Ultron due to the rights of the character, since FOX still owned the X-Men franchise. Now with the merger (Disney buying FOX and its assets) cases of mutants showing up in more MCU films is highly probable.

You could say Wanda Maximoff/Scarlet Witch is the mother of X-Men in the MCU, and maybe, in the long run, she’ll search for other mutants like her.

Civil War


Towards the third act of the movie, there’s a confrontation, a little scuffle. And who does it involve? Captain America and Iron Man. Tony Stark’s unyielding attempts to create a higher form of intelligence urged him to begin creating Vision through JARVIS, the Mind Stone, and Vibranium. But Steve Rogers wasn’t having it considering that he had already messed around and created Ultron.

This led to a small fight between them in the Avengers facility which was soon thwarted by Thor who woke Vision from his slumber.

But still, this small bout led to the biggest fight between The Avengers.

Black Widow and The Hulk


The most unnecessary storyline introduced in the movie; Natasha and Bruce Banner’s relationship. It went from The Hulk almost killing Black Widow in The Avengers to the hilariously infamous quote “the sun’s getting real low” as they touched hands, got all lovey-dovey with one another, and ended up smooching in Sokovia.

It was cringeworthy.

But would the following movies after that, especially Endgame, have been the same without it? No. Their relationship ultimately didn’t work out, but they had a bond. When Bruce Banner discovered her demise on Vormir, he wasn’t just devastated because she was an Avenger. She was a dear friend, and it gave depth to the story. And without watching Age of Ultron, you wouldn’t understand it. At. All.

Hawkeye’s Family


Age of Ultron introduced another relationship, and it was in the form of Hawkeye’s family. Throughout the movie, there was a running joke about his “girlfriend”. Turns out he has a wife and children.

This small detail would end up being very important down the line, as Hawkeye would become the mysterious Ronin after Thanos’ Snap in Avengers: Infinity War turned his family into dust.

Moreover, learning about his family potentially introduced us to the new Hawkeye in the form of his daughter, who was seen being very handy with a bow at the beginning of Endgame.

Vision and Wanda


As you can see, Age of Ultron was very heavy on relationship building, as Scarlet Witch and Vision would eventually become romantically involved. It is not as easy to see as in Civil War, but it was the very beginning of what would become a pivotal aspect in the overall story.

Wielding Mjolnir


During a party at the beginning of the film, the Avengers want to see if they are “worthy” to wield Thor’s hammer and in this sequence, Captain America attempts to do so.

Pulling with all his might, teeth clenched and muscles bunched, a tiny squeak sounds from the hammer, slightly budging. Thor’s face says it all. A flash of worry crosses his expression and as Captain America leaves the table where it sits, he smiles at him with a trying-to-stay-cocky face.


Later in the movie, because of this joke, Vision, in trying to persuade the Avengers that he is trustworthy, picks up Mjolnir, and it’s a drop-the-mike moment.

After four years, however, this incredible moment became an ancient and dusty memory…until Endgame. In the battle against Thanos, Captain America would try to wield Mjolnir again, and this time he is worthy. The claps and roars were deafening in the movie theater.

Yet another stem from Age of Ultron.

Infinity Gauntlet


In the second act of the movie, Thor leaves the Avengers to have some “me time”. He meets with the scientist Erik Selvig (the guy who opened up the portal in The Avengers, allowing Thanos’s army to invade Earth), and they go to this underground water hole. For anyone who wants to see Thor’s bare chest, this is their cup of tea. For me, it’s not one of my favorite parts but during this scene, Thor begins to understand the importance of the Infinity Stones.

In his vision, it shows the four Infinity Stones we knew of in this point of the story, Space, Mind, Reality, and Power, and in the graphic, it reveals a hint of Thanos’ Infinity Gauntlet.

Then, in the first post-credit scene, a vault opens, Thanos steps forward, and he places his hand in the golden Infinity Gauntlet. “Fine, I’ll do it myself,” he says ominously with a smile on his face, blue eyes twinkling with mad glee.

Met with a rowdy roar of applause and cheers in the movie theater, this scene is an exciting precursor to Thanos’ arrival in Infinity War.



The whole point of Captain America: Civil War was the Avengers doing more damage to the world than helping it. In all of their battles, there were many casualties while The Avengers were able to walk away with little more than a scratch.

Sokovia was one of those factors. In Civil War, in fact, the initiative to oversee the Avengers’ activities was called the Sokovia Accords. This broke them apart, and we know how that ends.



This may seem insignificant, but can you imagine Bruce Banner with a gun in Infinity War? No, he’s not Bucky. Actually, he probably would’ve died. Yikes.

Which actually takes me to the next segment:

Going to Space


Bruce Banner would’ve never turned into Professor Hulk if not for the events that took place at the end of Avengers: Age of Ultron.

In the film’s conclusion, The Hulk goes after Ultron who has hijacked a Quinjet. He throws Ultron out of the ship, who ends up crashlanding into an abandoned train.

The Hulk, however, remains in this Quinjet and despite Black Widow’s urges for him to turn around and rejoin the Avengers, he just keeps drifting along.

Somehow, he ended up on Sakaar (I still don’t understand how he got there). In order to survive the Grandmaster’s tournaments, he remained as The Hulk and rejected his “puny” self…that is until Thor showed up and, upon returning to the Quinjet and seeing an old recording of Natasha, he turned back into Bruce Banner.

Long story short, they go to Asgard, Asgard gets destroyed, Thanos shows up, he gets beat up by Thanos, can’t turn back into The Hulk again, and in the aftermath of Infinity War scientifically alters himself to be Bruce Banner and The Hulk at the same time.

All of this wouldn’t have been possible without Age of Ultron.



Before Civil War, which introduced Black Panther, the first mentioning of Wakanda was in Age of Ultron. Yeah, there was an Easter Egg in the post-credits scene of Iron Man 2, which showed a map of Africa and a highlighted area called Wakanda, but this is the first substantial relation to the fictional African country.

The Avengers go to the African Coast in search of Ulysses Klaue (who also was in Black Panther). He oversees an illegal vibranium operation which Ultron finds would be perfect for his agenda, attracting the Avengers in turn.

The Red Room


Not much has been said about Black Widow/Natasha Romanoff’s backstory. Characters in these movies only talk about it.

Until Age of Ultron, which attempted to dive deeper into her past. We see clips of her younger years in the Red Room, learn about her inability to bear children, and see how it has scarred her.

This will prove even more fundamental once the Black Widow movie comes out.

There you have it. Twelve reasons why Avengers: Age of Ultron is the most important sequel. No other movie in the MCU has that many connections and implications to past and present Marvel films.

So while it may not be the best piece of lore in the MCU, it cannot be ignored.


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