Avengers: Doomsday

Avengers: Doomsday is an upcoming American superhero film based on the Marvel Comics superhero team the Avengers. Produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures, it is intended to be the sequel to Avengers: Endgame (2019) and the 39th film in the Marvel Cinematic Universe (MCU). Directed by Anthony and Joe Russo, and written by Michael Waldron, Stephen McFeely, and the writing team of Chris McKenna and Erik Sommers, the film features an ensemble cast led by Robert Downey Jr. as Doctor Doom. In the film, the Avengers, Wakandans, New Avengers, Fantastic Four, and the X-Men converge from different universes to face Doom amidst the collapse of the multiverse.

Summary from Wikipedia (CC BY-SA).