India, April 17 -- The trailer for Marvel's much-awaited next Avengers film - Doomsday - was unveiled at the ongoing CinemaCon in Las Vegas on Thursday. The film, slated to release in December, marks the return of Robert Downey Jr to the Marvel Cinematic Universe (MCU). But the star isn't Iron Man this time around. In Doomsday, he plays the villain Doctor Doom. The trailer set things up for Doom's arrival and the return of the OG Avengers.

At CinemaCon, Robert Downey Jr and Chris Evans, who played Steve Rogers in the MCU, took to the stage to unveil the trailer. Called the Trailer of Doom, this is the first major video asset from the film, offering the first official glimpse of the Russo Brothers' return to the MCU.

Deadline detailed th...