CinemaCon 2026: “Avengers: Doomsday” Trailer Reveals Robert Downey Jr.’s Dr. Doom
Dr. Doom took over CinemaCon on Thursday.
Marvel Studios revealed the first good look at the Russo Brothers’ Avengers: Doomsday, the upcoming epic featuring Robert Downey Jr.’s return to the MCU in a brand-new role. After Downey’s Tony Stark gave up the ghost as the ultimate hero in Avengers: Endgame, the Marvel lynchpin’s time leading the studio’s Avengers films (to say nothing of his stint in the standalone Iron Man movies) seemed over. That was until it was announced that Downey Jr. was returning as the iconic supervillain Dr. Doom.
Marvel Studios boss Kevin Feige was on hand in Las Vegas on Thursday to close Disney’s presentation, unveiling the Doomsday trailer, which highlights Downey Jr.’s return, and hyping the excitement surrounding the long-awaited return of the X-Men.
As for Downey Jr.’s Dr. Doom, co-director Joe Russo said, “He’s not simply a villain — he’s one of the most complex Marvel characters. He’s always three moves ahead.”
This brought Downey Jr. to the stage—the Rolling Stones’ “Sympathy for the Devil” played him on—and he said, “I couldn’t have imagined reuniting with this amazing team—let alone as a new character.”
The trailer includes a note of warning from Chris Hemsworth’s Thor about the new threat the Avengers face.
“Put aside your petty squabbles. Presume nothing except this: If you return, you will return as brothers and sisters. Mark my words: We are going to need a miracle.”
The trailer ends with another returning champion, Chris Evans’ Steve Rogers, grabbing Thor’s hammer and saying, “It’s not possible.”
We haven’t gotten a good look at Downey Jr. as Dr. Doom since the credits of The Fantastic Four: First Steps, but he was turned away, and his face wasn’t visible. On December 18, however, Avengers: Doomsday will hit theaters, and the star will once again be front and center in an epic Avengers title.
About that release date—currently, Avengers: Doomsday and Dune: Part Three are slated to be released on the same day, and insiders have been insisting one of those films would need to move, and it was assumed it would be Doomsday, considering Dune: Part Three already has a commitment from IMAX to carry the film on their screens for three weeks. Disney has now revealed that they’re developing their own premium large-format certification program, called Infinity: Vision, that will let audiences know which screens meet their specifications, the ones that make IMAX screens so coveted. Infinity: Vision will debut in September, when Avengers: Endgame is rereleased.
Featured image: LAS VEGAS, NEVADA – APRIL 16: Robert Downey Jr. speaks during CinemaCon 2026 – Walt Disney Studios Invites you to its 2026 presentation highlighting its upcoming release schedule at The Dolby Colosseum at Caesars Palace during CinemaCon, the official convention of Cinema United, on April 16, 2026, in Las Vegas, Nevada. (Photo by David Becker/Getty Images for CinemaCon)
