The trailer for Avengers: Doomsday, one of Marvel Cinematic Universe's most anticipated projects, was unveiled at CinemaCon 2026 in Las Vegas on Thursday.
Set for a December release, the film marks the much-talked-about return of Robert Downey Jr. to the MCU. However, in a major twist, he won't be reprising his iconic role as Iron Man. Instead, he steps into the shoes of the formidable villain Doctor Doom.
The trailer offers a glimpse into the looming threat posed by Doctor Doom, while also teasing the comeback of the original Avengers, setting the stage for a high-stakes showdown.
Makers have already announced that Avengers: Doomsday will pick up where Endgame left off.
© Marvel Studios
About Avengers: Doomsday Trailer
At CinemaCon 2026, Robert Downey Jr. and Chris Evans, best known for playing Steve Rogers in the Marvel Cinematic Universe, took the stage to unveil the much-anticipated footage.
Titled the 'Trailer of Doom,' it marks the first major visual reveal from Avengers: Doomsday and offers audiences their initial look at the return of the Russo Brothers to the MCU.
The trailer opens on an ominous note, with a voiceover declaring, "Something's coming!" Moments later, a blinding flash transitions into the first striking glimpse of Robert Downey Jr. as Doctor Doom, donning a metallic silver mask.
What follows is a rapid montage introducing a star-studded lineup of characters from across the Marvel Cinematic Universe and beyond. The teaser showcases Pedro Pascal as Mister Fantastic, Sebastian Stan as Bucky Barnes, Florence Pugh as Yelena, and Chris Hemsworth as Thor.
It also features Letitia Wright as Shuri, Channing Tatum as Gambit, Patrick Stewart as Professor X, and James Marsden as Cyclops. Adding to the scale, Vanessa Kirby appears as Sue Storm, Joseph Quinn as Johnny Storm, and Tenoch Huerta as Namor, among others, hinting at a massive crossover event in Avengers: Doomsday.
© Marvel Studios
The trailer then shifts focus to Chris Hemsworth's Thor, who emerges as a key figure in the looming battle against Doctor Doom. Reflecting on the fallen Avengers, he says, "They died facing enemies and threats. Everything they sacrificed will be for nothing if we don't stand together."
As Thor charges at Doom with Stormbreaker, the attack is effortlessly stopped, underlining the villain's overwhelming power. In a moment of desperation, Thor calls out for a miracle, only for a familiar voice to respond, "Hey, pal!" It's Chris Evans returning as Steve Rogers.
© Marvel Studios
In a dramatic reveal, Rogers lifts Thor's Mjölnir, leaving Thor stunned. Although the trailer hasn't been officially released to the public yet, reports suggest that the audience at CinemaCon 2026 erupted into loud cheers and applause, even prompting Robert Downey Jr. to request a second screening of the footage.
Avengers: Doomsday will be released in theatres on December 18, this year.