Veteran actor Ian McKellen has accidentally revealed a significant plot detail from the upcoming ‘Avengers: Doomsday’ film, confirming that his character Magneto will destroy New Jersey in a major action sequence.

The Accidental Revelation

During a recent interview with Jake Hamilton, the 86-year-old McKellen was discussing his experience performing practical effects in earlier X-Men films. While reflecting on how filmmaking technology has evolved, McKellen inadvertently disclosed crucial plot information. He compared old-school practical effects with modern techniques, stating that nowadays such scenes become easier to execute, before adding that he ‘destroyed New Jersey the other day’ during filming.

Ian McKellen accidentally reveals that Magneto destroys New Jersey in ‘AVENGERS: DOOMSDAY’

“Oh, I probably shouldn’t have said that.”

(via @JakesTakes) pic.twitter.com/ezQzQf2nrs

— Avengers Updates (@AvengersUpdated) January 31, 2026

McKellen immediately realized his mistake, quickly responding with, ‘I perhaps shouldn’t have said that.’ The slip occurred while he was discussing his return as the iconic villain Magneto, a role he first portrayed in the original X-Men film series alongside Patrick Stewart’s Professor Charles Xavier.

Magneto’s Return Confirmed

McKellen’s participation in ‘Avengers: Doomsday’ was previously confirmed through the film’s teaser trailer, which featured him opposite Stewart in a chess game scene. The accidental spoiler now provides fans with concrete details about the scale of destruction his character will unleash in the highly anticipated Marvel film. His comments suggest a large-scale catastrophic event involving the entire state of New Jersey.

What This Means for the Film

‘Avengers: Doomsday’ is scheduled for theatrical release on December 18, 2026, and will face significant box office competition from ‘Dune 3’ opening the same day. The film represents McKellen’s return to the Marvel universe after years away from the franchise. His accidental revelation joins a series of leaks that have plagued the production, including earlier trailers and promotional material leaks that surfaced online before official releases.