Marvel Studios releases the first full trailer for “Avengers: Doomsday,” alongside promotional material that includes new poster imagery. Multiple outlets report the trailer features Robert Downey Jr. as Doctor Doom in a prominent role, presenting him as the central source of disruption and conflict. The film’s ensemble cast is highlighted across coverage, with recurring attention to Chris Evans returning as Steve Rogers and to the wider roster of Marvel characters and teams.
The trailer footage connects “Doomsday” to the X-Men universe, including imagery associated with Professor X’s school for gifted youngsters. Coverage also describes a large multiverse crossover, with heroes and storylines from different Marvel properties colliding—specifically the Avengers, the X-Men, and the Fantastic Four—while other teams and characters are also teased. One outlet notes an official synopsis included with the trailer confirms a previously rumored plot element, though specific details are not fully consistent across the summaries provided here. Several reports also describe the trailer as being shown to fans and attendees at Marvel’s San Diego Comic-Con 2026 panel, with further dissemination following the initial premiere.
