Avengers: Doomsday Bombshell — Cast Says Script Isn’t Finished and Actors Filmed in Isolation

Avengers: Doomsday is filming in the UK, and several cast members have said production has been secretive and that parts of the script were not finished while shooting continued.

• • What cast members have said about on-set secrecy and unfinished pages.
  • Previous MCU examples where directors kept details from actors.
  • Sources that reported these comments and related context.

Cast comments from recent press appearances

Reports from the movie’s UK set have included comments from multiple actors about limited information during filming. Below is what those actors have said in published interviews and press appearances.

Alan Cumming says he doesn’t know who he was acting with half the time when filming ‘AVENGERS: DOOMSDAY’:

“I did the entire film in isolation. Lots of green screen, face replacement. They even gave characters fake names. I don’t know who I was acting with half the time.”… pic.twitter.com/Pcye62XY7J

— DiscussingFilm (@DiscussingFilm) August 21, 2025

Scottish actor Alan Cumming — who is listed among the returning 20th Century Fox-era X-Men actors in the cast — spoke about his experience in an interview with Gold Derby. He said,

“I did the entire film in isolation,” Cumming said. “Lots of green screen, face replacement. They even gave characters fake names. I don’t know who I was acting with half the time.”

Rebecca Romijn says she’s not sure if she has finished filming her scenes for ‘AVENGERS: DOOMSDAY’

“Not sure. They haven’t finished writing [the script]”

(Source: @THR) pic.twitter.com/sSyThp0S4H

— DiscussingFilm (@DiscussingFilm) July 26, 2025

Earlier, actress Rebecca Romijn told The Hollywood Reporter that she was unsure whether she had finished filming because, in her words,

“The script hasn’t — they haven’t finished writing it,” she said. “It’s been very, very fun, and we don’t know yet. They keep everything very close to the vest themselves in an effort to keep everything under wraps.”

Past MCU examples of secrecy and unfinished pages

There are precedents in the Marvel Cinematic Universe for tight secrecy and evolving scripts during large productions.

For example, during production of Avengers: Endgame, directors Anthony and Joe Russo kept the cast unaware of certain plot details. Vanity Fair reported that the funeral scene for a major character was filmed under the pretense of a different event, and actors were not told the actual context at the time of shooting: Vanity Fair.

Separately, BuzzFeed News reported that the script for Avengers: Endgame was not finished when production began on Avengers: Infinity War, and writers adjusted both films during production.

Current situation and reporting

So far, the concrete facts reported are:

• Multiple cast members have said the production is secretive and that they did not always know who they were acting with.
• At least one cast member has stated the script “hasn’t — they haven’t finished writing it.”
• Similar approaches to secrecy and script changes have occurred on past MCU projects, as documented by mainstream outlets.

Filming continues in the UK and Marvel has not released an official, detailed production timeline in the sources cited above. Therefore, public reporting on secrecy and script status comes from the actors’ interviews and the outlets that published them.