Overview
- Joe and Anthony Russo confirmed that principal photography began before the screenplay was finished and described the script as a "living organism" shaped by improvisation and rehearsals.
- Principal photography has wrapped but multiple outlets report additional photography and late reshoots have continued to refine the film and, according to insiders, to insert surprise cameos; those cameo claims remain unconfirmed by Marvel.
- Robert Downey Jr. returns to the franchise in the role of Victor von Doom rather than as Tony Stark, a high-profile casting choice that helped bring the Russos back to direct.
- The Russos frame Doomsday as a "back to zero" creative reset for the MCU and say they are finishing editing and scoring while "soft prepping" the direct follow-up, Avengers: Secret Wars.
- The production’s iterative process reflects common tentpole practice but raises stakes because the film aims to reunite multiple Marvel eras and to help reinvigorate the franchise after mixed box-office and critical results in recent phases.