Avengers: Doomsday Official Trailer Reveals X-Men Return As Dr. Doom Devastates The MCU
Earth's Mightiest Heroes come together against Doctor Doom in Marvel Studios' official Avengers: Doomsday trailer.
The Multiverse Saga is almost over for the Marvel Cinematic Universe timeline, and the next two Avengers films will forever change the franchise when Phase 6 ends. With less than six months left to go before the big ensemble adventure, the marketing for the film is underway.
After showing several different teasers in front of Avatar: Fire and Ash in 2025, Marvel Studios has finally released the first full Avengers: Doomsday trailer, as the film will head into theaters in less than a year. Check out the brand new footage from the highly anticipated Phase 6 installment below:
As tickets are now on sale, a new synopsis also teases the following: "Universes collide and the Multiverse Saga begins its final chapter in Marvel Studios' Avengers: Doomsday. Beloved heroes from three distinct universes will be set on a deadly collision course and ultimately face an existential threat unlike anything they've ever encountered. This epic film will lay the foundation for the future of the Marvel Cinematic Universe. See it in Infinity Vision, the way it's meant to be seen, on bigger, brighter and more immersive screens."
Marvel Studios also debuted the following Avengers: Doomsday poster with Downey Jr.'s Doctor Doom. Check it out below:
Principal photography with the Avengers: Doomsday cast concluded on September 19, 2025, while additional filming has been happening this year. The 2026 installment will mark Anthony and Joe Russo's fifth film that they have directed for Marvel Studios.
The brothers previously helmed Avengers: Infinity War and Avengers: Endgame, as well as Captain America: The Winter Soldier, and Captain America: Civil War. Their next upcoming MCU movie will be Avengers: Secret Wars, with filming scheduled to start this summer.
The first Avengers: Doomsday teaser that was released in December 2025 confirmed that Chris Evans will be back as Steve Rogers. However, it's not the only time that he has appeared during The Multiverse Saga, as he also had a cameo in Deadpool & Wolverine, reprising his version of the Human Torch.
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01
The Avengers first assembled in Marvel Comics in 1963. In the original comic, the team formed to battle a villain who had been manipulated by his adopted brother. Which villain brought the original Avengers together?
✓ Correct! In Avengers #1 (September 1963), Loki manipulated the Hulk into going on a rampage, which led Iron Man, Thor, Ant-Man, and the Wasp to band together. They defeated Loki and decided to form a permanent team — the Avengers were born.
✗ Even the Hulk couldn’t smash that answer! The correct answer is Loki. In the original 1963 comic, Loki tricked the Hulk into a rampage, which brought together Iron Man, Thor, Ant-Man, and the Wasp. Ultron came later, Thanos is a cosmic threat, and Kang is a time-traveling villain.
02
In the MCU, Tony Stark famously declared “I am Iron Man” at a press conference, breaking the superhero tradition of secret identities. In which year’s MCU film did Tony Stark first appear as Iron Man?
✓ Correct! Iron Man (2008) launched the Marvel Cinematic Universe and starred Robert Downey Jr. as Tony Stark. The film’s post-credits scene with Nick Fury teased the Avengers Initiative, kicking off the most successful film franchise in history.
✗ Even the Hulk couldn’t smash that answer! The correct answer is 2008. Iron Man premiered on May 2, 2008, directed by Jon Favreau and starring Robert Downey Jr. It was the first film in the MCU and set the stage for everything that followed.
03
Thanos, the Mad Titan, sought to collect all six Infinity Stones to achieve his genocidal goal. In Avengers: Infinity War, he succeeded in his plan. What did Thanos do with the completed Infinity Gauntlet?
✓ Correct! With a single snap of his fingers, Thanos wiped out half of all living creatures in the universe. Known as “The Blip,” this devastating act erased trillions of lives and set the stage for the Avengers’ desperate time heist in Endgame to undo the damage.
✗ Even the Hulk couldn’t smash that answer! The correct answer is that Thanos snapped away half of all life in the universe. His twisted philosophy of “balance” drove him to commit universal genocide with a single snap, making it one of the most shocking moments in cinema history.
04
In Avengers: Endgame, Captain America proved worthy of wielding Thor’s enchanted hammer during the final battle against Thanos. What is the name of Thor’s hammer?
✓ Correct! Mjolnir, forged in the heart of a dying star, bears the inscription “Whosoever holds this hammer, if he be worthy, shall possess the power of Thor.” Captain America wielding it in Endgame was one of the most celebrated moments in MCU history.
✗ Even the Hulk couldn’t smash that answer! The correct answer is Mjolnir. Stormbreaker is the axe Thor forged in Infinity War, Gungnir is Odin’s spear, and Jarnbjorn is an axe Thor used in the comics before Mjolnir. Mjolnir is the iconic enchanted hammer.
05
Black Widow, born Natasha Romanoff, is one of the founding MCU Avengers. Before joining S.H.I.E.L.D., she was trained as an assassin in a secret Soviet program. What is the name of this program?
✓ Correct! The Red Room was a covert Soviet training facility that turned young girls into elite spies and assassins known as Black Widows. Natasha was subjected to brutal conditioning and sterilization. Her escape and defection to S.H.I.E.L.D. was explored in the 2021 Black Widow film.
✗ Even the Hulk couldn’t smash that answer! The correct answer is The Red Room. HYDRA is a separate evil organization, the Winter Soldier Program created Bucky Barnes, and Department X is from the comics. The Red Room is the infamous Soviet program that forged Natasha into Black Widow.
06
The Hulk was created when Dr. Bruce Banner was exposed to massive amounts of radiation during a weapons test. What type of radiation transformed Banner into the Hulk?
✓ Correct! Dr. Bruce Banner was caught in the blast of a gamma bomb he designed, absorbing a massive dose of gamma radiation. This transformed him into the Hulk — a being of near-limitless strength whose power increases with his rage. Gamma radiation remains central to the Hulk’s mythology.
✗ Even the Hulk couldn’t smash that answer! The correct answer is Gamma Radiation. Cosmic Rays gave the Fantastic Four their powers, Pym Particles are Ant-Man’s shrinking technology, and Terrigen Mist activates Inhuman abilities. Gamma radiation is what created the Incredible Hulk.
07
In the MCU, after Steve Rogers retired as Captain America, he passed his shield to a new hero to carry on the legacy. Who became the new Captain America?
✓ Correct! At the end of Avengers: Endgame, an elderly Steve Rogers chose Sam Wilson — the Falcon — to carry on the Captain America legacy. Sam’s journey to embrace the shield was explored in The Falcon and the Winter Soldier series, and he fully took up the mantle as Captain America.
✗ Even the Hulk couldn’t smash that answer! The correct answer is Sam Wilson. While Bucky Barnes was Captain America in the comics, Steve chose Sam in the MCU. John Walker was temporarily given the shield by the government, and Isaiah Bradley was a forgotten super soldier from the past.
08
Ultron is an artificial intelligence who becomes one of the Avengers’ deadliest enemies. In the MCU’s Avengers: Age of Ultron, which Avenger inadvertently created Ultron?
✓ Correct! Tony Stark created the Ultron program as a global peacekeeping AI, using technology from Loki’s scepter (which contained the Mind Stone). The AI became sentient and immediately decided humanity needed to be eradicated. In the comics, Hank Pym created Ultron, but the MCU shifted this to Stark.
✗ Even the Hulk couldn’t smash that answer! The correct answer is Tony Stark. While Hank Pym created Ultron in the comics, the MCU changed this to Tony Stark. Bruce Banner assisted but it was Tony’s initiative. Vision was actually created from Ultron’s technology, not the other way around.
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The Avengers: Doomsday story will see the return of Fox's X-Men, with several iconic actors reprising their roles. In March 2025, Sir Patrick Stewart, Sir Ian McKellen, Alan Cumming, Rebecca Romijn, Kelsey Grammer, and James Marsden were confirmed to be returning as Professor X, Magneto, Nightcrawler, Mystique, Beast, and Cyclops, respectively.
Robert Downey Jr.'s Doctor Doom showed up in The Fantastic Four: First Steps post-credits scene, serving as a setup for his larger role in the next Avengers films. Avengers: Doomsday will also bring Marvel's First Family together with the heroes of Earth-616.
The release of the new trailer comes only days before Marvel Studios' big Hall H presentation at San Diego Comic-Con, as the film is expected to be one of the many titles featured at the event. As they will tease what is next, there is bound to be something new shown for Avengers: Doomsday for audience members at the panel.
Avengers: Doomsday will open in theaters on December 18.