Avengers: Doomsday unfinished script reports have prompted Joe and Anthony Russo to explain that the production is being shaped by their rehearsal-led approach, but that is part of their rehearsal-led approach rather than evidence that Marvel’s next blockbuster has no shape. The directors are still changing lines and character moments while shooting continues, according to IGN.

The Russos described the script as a work in progress during an interview reported by the Associated Press. Joe Russo said they are “improvisation-based, rehearsal-based directors” who want to see what actors bring to their roles before finalising every scene.
Avengers: Doomsday unfinished script and on-set changes
The comments point to adjustments in dialogue and character business, not necessarily a film being written from scratch in front of the cameras. The Avengers: Doomsday unfinished script is therefore being treated as a production detail, not confirmation that the main story is unsettled. The Russos said they use rehearsals to find chemistry between actors and refine scenes once the relevant cast members are available.
IGN reports that reshoots are also taking place with returning and additional cast members. Jeremy Renner has previously teased involvement as Clint Barton, although the extent of Hawkeye’s role has not been confirmed.
When is Avengers: Doomsday released?
Avengers: Doomsday is currently set to arrive in cinemas on 18 December 2026. Marvel’s next two Avengers films remain a sizeable production pair, with Avengers: Secret Wars expected to follow after Doomsday.
The film stars a large returning and new ensemble, including Chris Evans and Robert Downey Jr. Downey is playing Doctor Doom rather than Iron Man. For more on the project, see our coverage of Jeremy Renner’s Avengers: Doomsday return and the Avengers: Doomsday rewatch podcast.
Marvel has used extensive secrecy around the project, which makes any production detail liable to become a fan debate before the film reaches a cinema. The Russos’ explanation is narrower: they are defending a process they have used before, while confirming that work on Doomsday is continuing close to release.
Was Avengers: Doomsday filmed without a finished script?
Yes. The Russo brothers said the production went into shooting with an unfinished script, while describing their rehearsal-led method for refining scenes.
Why is the Avengers: Doomsday script still changing?
Joe Russo said the directors use rehearsals and actor availability to refine dialogue, character moments and scene details during production.
When does Avengers: Doomsday release?
Avengers: Doomsday is scheduled to arrive in cinemas on 18 December 2026.


















