Avengers Doomsday Trailer Shows Doctor Doom Unleashing Mutant-Hunting Sentinels

Marvel has shared an exciting new look at a big movie called Avengers: Doomsday.

The trailer was shown at a giant fan event called D23.

In it, a powerful villain named Doctor Doom is played by Robert Downey Jr., the same actor who once played Iron Man.

Doctor Doom is so strong that he easily stops Thor's mighty weapon, Stormbreaker.

He tells the superheroes that they have lived 'stolen lives' and must give them back.

Doom also wakes up giant robots called Sentinels that hunt mutants.

Lots of heroes appear, including the Avengers, the Fantastic Four, the Thunderbolts, and the X-Men.

Some famous heroes, like Spider-Man and Hulk, are not in the trailer at all.

The movie is coming to theaters on December 18, 2026, and fans are very excited.