As if you needed another reason to watch Avatar: Fire and Ash, the Avengers: Doomsday trailer will reportedly play in front of James Cameron's threequel

Early Trailer Release for Avengers: Doomsday

The first footage for Avengers: Doomsday is set to debut unusually early. According to Collider, the trailer will be shown ahead of Avatar: Fire and Ash, James Cameron's upcoming third film in the Avatar series. This new installment, featuring Pandora's Ash People, premieres on December 19, 2025.

Timing and Comparison to Previous Avengers Films

The Avengers: Doomsday trailer will premiere almost exactly one year before the movie’s release date on December 18, 2026. This is an earlier preview compared to prior Avengers films:

This extended 12-month buildup may reflect Marvel Studios' strong confidence in Doomsday, potentially sparking significant fan speculation for a film mostly kept under wraps until now.

Cast and Marvel Connections

Known casting details include Robert Downey Jr., alongside members of the Fantastic Four and Thunderbolts teams. Several iconic MCU heroes and legacy X-Men characters will also join the film. The complete cast list was disclosed in a six-hour live stream back in March.

“Avengers: Doomsday could be the biggest film of the decade,”

— Channing Tatum, actor portraying Gambit

Summary

This early trailer release ahead of Avatar: Fire and Ash highlights growing anticipation for Avengers: Doomsday, promising a major Marvel event with an expansive cast and notable confidence from the studio.

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GamesRadar+ GamesRadar+ — 2025-11-07