Disney unveils 'Avengers: Doomsday' trailer

The trailer showcased an unprecedented crossover event involving the Avengers, X-Men, and Fantastic Four.

Key highlights included a reunion between Thor and Steve Rogers, alongside glimpses of Captain America wielding Thor's hammer.

The film is set to clash at the box office with Timothée Chalamet's 'Dune: Part Three,' which opens on the same day.

Directors Joe and Anthony Russo also announced that 'Avengers: Endgame' will receive a theatrical re-release featuring exclusive new footage ahead of the 'Doomsday' premiere.