A trailer for Avengers: Doomsday has been released, offering a first look at the film's cast, including Robert Downey Jr. as Doctor Doom. The trailer reportedly provides a sneak peek at Downey Jr.'s take on the character, although details about the film's plot are not specified. The movie appears to be a major crossover event, with some outlets noting the return of Chris Evans as Steve Rogers, although the full scope of the film's cast and story remains unclear.