The long-awaited first footage from Marvel’s upcoming team-up, Avengers: Doomsday, is expected to premiere in theaters this December. The teaser is planned to be attached to another major Disney release, Avatar: Fire and Ash.
Although the film itself won’t arrive in cinemas until December 2026, audiences won’t need to wait much longer to see a sneak peek. If plans stay on track, viewers will catch their first look at Robert Downey Jr.’s mysterious titanium-masked antagonist on December 19, 2025.
This timing fits neatly, as James Cameron’s third journey to Pandora opens almost exactly one year before Avengers: Doomsday premieres on December 18, 2026.
With Thunderbolts* and The Fantastic Four: First Steps both releasing earlier this year, Marvel has effectively laid the groundwork for its next major crossover event. The anticipation continues to build as production develops under considerable secrecy.
Earlier this year, Marvel reignited fan excitement by teasing cast chairs from the set that hinted at several surprises, including the return of characters from the 20th Century Fox X-Men universe.
Alan Cumming, returning as Nightcrawler, revealed he began filming his scenes even before the script was completed.
The first glimpse of Avengers: Doomsday will debut with Avatar: Fire and Ash this December, marking a key milestone in Marvel’s new cinematic chapter.