The Marvel Cinematic Universe is showing no signs of slowing down, with the studio constantly putting out new projects in theaters and streaming with a Disney+ subscription. Arguably the most highly anticipated upcoming Marvel movie is The Russo Brothers’ Avengers: Doomsday, which looks like an epic crossover event. Robert Downey Jr. is returning to the MCU as Doctor Doom, and even he was nerding out about the OG stars of the X-Men movies reprising their roles on set.
What we know about Avengers: Doomsday has been limited, but the huge list of characters has been buoying excitement. The Doomsday cast features entire teams of heroes, including the X-Men. During a conversation with EW at San Diego Comic-Con, RDJ gushed about seeing actors like Rebecca Romijn and Kesley Grammer back as their (blue) mutants. As he put it:
I think we can say that it was a big moment and you and Kelsey being back. I have to say we just nerded out, and I think it lit up this constellation of like, excitement and like this couldn’t have been easy to pull off. The story encompasses it and, again, having seen everything that I won’t talk to you about, it’s just incredible.
Talk about a glowing endorsement. Fans who spent years watching the Marvel movies in order know that the MCU started with Robert Downey Jr.’s Iron Man, so he’s was a day one member of the shared universe. But despite being in this sandbox for nearly two decades, even the Oscar-winning actor was geeking out about working with the X-Men.
Tony Stark died at the end of Endgame, which fans assumed would be RDJ’s final bow in the MCU. But that’s changing with Doomsday, although he’ll be playing an entirely different character and going from a hero to a villain. And fans can’t wait to see how this all shakes out this winter.
Not much about the story of the next Avengers movie had been revealed yet, but the first Doomsday trailer became one of the highest-viewed trailers of all time. So despite the mysteries and Marvel’s tight security, there’s clearly a ton of fan excitement about the crossover event. And after seeing the above comments, that enthusiasm is clearly echoed by RDJ himself.
While we got the blockbuster’s first trailer, much of the details and story of Doomsday remain a mystery to the moviegoing public. Clearly the multiverse is at play, and the teams of heroes will presumably have to unite to fight Doctor Doom and his forces.
All will be revealed when Avengers: Doomsday hits theaters on December 18th as part of the 2026 movie release list. Luckily the movie’s publicity has kicked off, so hopefully we get more information about its contents sooner rather than later.
