Key facts
- The Russo Brothers discussed "Avengers: Doomsday" at SXSW London.
- Robert Downey Jr. is reportedly cast as Doctor Doom.
- The film is scheduled for release on December 18.
- A separate film, "Secret Wars," is also in development.
At SXSW London, filmmakers Joe and Anthony Russo provided new details regarding the upcoming Marvel Cinematic Universe film, "Avengers: Doomsday." During their discussion, they revealed that Robert Downey Jr. is slated to portray the character of Doctor Doom. The highly anticipated film is slated for release on December 18. In addition to "Avengers: Doomsday," the brothers also confirmed that another project, "Secret Wars," is currently in the works.