Avengers Doomsday Trailer X Reactions: Fans Cannot Keep Calm At 'Pals' Thor, Captain America's Reunion; Call It 'Biggest Marvel Movie'

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wait is finally over! Marvel Studios has dropped the first trailer for Avengers: Doomsday, and it has sent X (formerly Twitter) into a frenzy. Packed with jaw-dropping moments, the trailer features Chris Hemsworth's Thor assembling Earth's mightiest heroes against Robert Downey Jr.'s Doctor Doom, while Chris Evans returns as Captain America for an emotional reunion with his longtime ally. Fans have also been thrilled by the return of the original X-Men, the Fantastic Four, and other MCU heroes. From calling it the "biggest Marvel movie" to declaring "We're so back," X users are convinced Marvel has delivered its most ambitious blockbuster since Avengers: Endgame.

'Pals' Thor, Captain America's reunion gets biggest cheer

One of the biggest talking points from the Avengers: Doomsday trailer is the emotional reunion between Thor (Chris Hemsworth) and Captain America (Chris Evans). The trailer ends with Steve Rogers making a surprise return, effortlessly catching Mjolnir before exchanging a heartfelt moment with his longtime teammate. For many Marvel fans, it instantly brought back memories of Avengers: Endgame, making the reunion the trailer's most talked-about moment.X (formerly Twitter) erupted with excitement, with one user writing, "WE WAITED FOR THIS SINCE ETERNITY," while another said, "The last time I was excited like this was during Avengers: Infinity War... Bro, Captain America is back." Several fans admitted they had not felt this level of anticipation since Endgame, with one post reading, "Why is this the most effort they've put into their movies since Endgame?"

The Thor-Captain America reunion also sparked nostalgia among longtime MCU viewers. One fan called Chris Evans' return as Steve Rogers "the most significant Captain America highlight" in the trailer, while another claimed the Steve Rogers-Thor duo matters even more than Loki and Thor, celebrating the chemistry between the original Avengers.Fans were equally thrilled about what comes next. Many predicted that Thor's battle against Doctor Doom could eclipse his iconic showdown with Thanos. "Thor vs Dr Doom gonna be 10x Thor vs Thanos," one X user wrote, while another added, "Thor and Dr. Doom fight scene is going to be epic."

Doctor Doom's arrival also left a lasting impression. One fan confessed, "The moment Doom appeared, I forgot every complaint I've had about the MCU over the last few years. That's how powerful this trailer was." Another praised the teaser as the "biggest Marvel movie" yet, saying Thor's emotional reaction to seeing Captain America again, coupled with the return of the X-Men, gave them goosebumps and restored their excitement for the MCU.

About Avengers Doomsday

Avengers: Doomsday, set to release on December 18, 2026, thrusts the Marvel Cinematic Universe into its biggest multiversal conflict yet. Led by Robert Downey Jr.'s Victor Von Doom/Doctor Doom, the film sees Chris Hemsworth's Thor rally Earth's mightiest heroes while Chris Evans returns as Steve Rogers/Captain America, setting up an emotional reunion between the longtime Avengers. The trailer also teases appearances by Pedro Pascal (Reed Richards/Mister Fantastic), Vanessa Kirby (Sue Storm), Joseph Quinn (Johnny Storm), Ebon Moss-Bachrach (The Thing), Paul Rudd (Ant-Man), Florence Pugh (Yelena Belova), Ian McKellen (Magneto), Patrick Stewart (Professor X) and several other MCU and X-Men stars.At the heart of the story are Incursions, catastrophic events that force multiple universes to collide. The crisis brings together the MCU's Earth-616, the Fox X-Men universe, and the Fantastic Four's Earth-828 in an unprecedented crossover. According to Marvel's official synopsis, the Avengers, Fantastic Four and surviving X-Men must unite to stop Doctor Doom as the boundaries between realities collapse, threatening the existence of every universe.