How long is the Avengers: Doomsday X-Men trailer? Runtime and leaks, explained

According to recent reports and international rating boards, the third teaser for Marvel's Avengers: Doomsday, which focuses on the X-Men, has been sent to theaters with a reported runtime of approximately 1 minute and 10 seconds (or 1 minute and 9 seconds according to Swedish ratings).

Marvel has been releasing a series of character-focused teasers rather than one long trailer of the film, which is slated for release on December 18, 2026. It began with the release of Cameron's Avatar: Fire and Ash, during which the upcoming film's trailers were being screened, with a separate one released every week.

Avengers: Doomsday X-Men trailer details

Leaks suggest the upcoming Avengers: Doomsday teaser will likely feature characters such as Professor X (Patrick Stewart), Magneto (Ian McKellen), and Cyclops (James Marsden).

The fourth teaser, which is rumored to be 1 minute and 20 seconds long, will likely highlight the Fantastic Four team and the people of Wakanda, specifically focusing on The Thing (Ebon Moss-Bachrach) and Shuri (Letitia Wright).

While the first two teasers revealed Chris Evans’ return as Steve Rogers and a more serious Thor (Chris Hemsworth), the upcoming ones are expected to take a darker turn. The film's X-Men teaser reportedly contains visuals hinting at the larger Multiverse conflict.

Notably, while fans are hoping for a Robert Downey Jr. Doctor Doom reveal, latest reports suggest Marvel is holding his full look for the first official Avengers: Doomsday full-length trailer in 2026, keeping the villain's presence limited to brief, haunting glimpses for now.

Avengers: Doomsday, which is set to hit theaters on December 18, 2026, serves as the beginning of the end for the "Multiverse Saga," bringing together a massive team to face a dark new power that puts the entire multiverse at risk.. The film brings together directors Anthony and Joe Russo, the duo behind Infinity War and Endgame. They are working from a script written by Michael Waldron (Loki) and Stephen McFeely.

The plot centers on the arrival of Doctor Doom, a master of both science and magic who triggers a crisis across the multiverse, forcing the Avengers, Wakandans, Fantastic Four, New Avengers, and the "original" X-Men team to reunite in battle.

The film features an ensemble cast that spans several generations of Marvel stories. Joining Downey Jr. are returning icons like Chris Hemsworth as Thor and Chris Evans as Steve Rogers. The "New Avengers" leaders include Anthony Mackie as Sam Wilson (Captain America), Sebastian Stan as Bucky Barnes, and Benedict Cumberbatch as Doctor Strange.

The film also features new major teams, including the entire Fantastic Four (Pedro Pascal, Vanessa Kirby, Joseph Quinn, and Ebon Moss-Bachrach) and the Thunderbolts (Florence Pugh and David Harbour). It will also feature Patrick Stewart’s Professor X and Ian McKellen’s Magneto alongside Tom Hiddleston’s Loki.

Stay tuned for more updates on Avengers: Doomsday.

Edited by Suchita Patnaha