The Avengers: Doomsday trailer’s release was tied to the debut of Avatar: Fire & Ash, so officially it arrived on December 18th, 2026. From there, it’s expected we’ll get one trailer per week, each one focused on a different aspect of the movie. This would mean the dates will be:

The 10-second clip, posted to the Russo's Instagram, features a clapperboard for Avengers: Doomsday, and then a countdown clock that begins ticking down from 12 months, showing the days, hours, minutes and seconds until the movie's arrival.

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Avengers: Doomsday is set to feature a ton of different new and returning stars to the MCU, including Chris Evans in a reported return.

Avengers: Doomsday is set to release on December 18, 2026. As shown by March's ultra-long livestream, the full cast is stacked. It includes legacy MCU actors, post-Endgame heroes, plus X-Men, Thunderbolts, and Fantastic Four actors.

Marvel made the somewhat baffling decision to produce theatrical-only teaser trailers for Avengers: Doomsday, a full year ahead of release. Now, of course, they have leaked online. Spoilers follow, although no one can be blamed for that but Marvel.

Marvel Studios is in full damage-control mode after what looks like the Avengers: Doomsday trailer leaked online, and while the studio is scrubbing it wherever it pops up, the biggest spoiler has already escaped containment.

Doomsday will reach the one-year mark. There hasn’t been this much hype around a Marvel Cinematic Universe project since Avengers: Endgame, which didn’t have to do much convincing to get flocks of people running to their local theaters.