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Disney’s Biggest Sci-Fi Movie of 2026 Is Officially Just Months Away
Marvel Studios' *Avengers: Doomsday* is now just 150 days from its 18 December 2026 release, positioned as the culmination of a run of major superhero films this year. The build-up continues with *Spider-Man: Brand New Day*, out on 31 July as the first MCU film of 2026, which is expected to draw a strong box-office debut and features a large ensemble cast, before attention turns fully to *Doomsday* as the year's biggest event picture.
*Brand New Day* is projected to take $180–190 million domestically over its opening weekend and could approach the billion-dollar mark, a feat last achieved by *Deadpool & Wolverine*. Its cast includes Tom Holland, Zendaya, Jon Bernthal, Jacob Batalon, Mark Ruffalo, Michael Mando, Marvin Jones III and Sadie Sink in an unconfirmed role. *Avengers: Doomsday*, meanwhile, will run 165 minutes, making it the second-longest MCU film after *Avengers: Endgame*, and a new trailer has recently offered a first look at its expansive cast.
In short
- *Avengers: Doomsday* arrives 18 December 2026, 150 days away.
- *Spider-Man: Brand New Day* (31 July) is 2026's first MCU release.
- *Doomsday* runs 165 minutes, the MCU's second-longest film ever.
Explained simply
The Marvel Cinematic Universe, or MCU, is a series of linked superhero films made by Marvel Studios, which is owned by Disney. Stories and characters from one film can carry over into another, and films featuring the Avengers bring together heroes introduced across the series.
Spider-Man is one of Marvel’s best-known heroes, while the Avengers are a team of characters including figures such as the Hulk. The films are led by Marvel Studios and feature actors such as Tom Holland and Mark Ruffalo; their connected stories and large casts help make each release part of a wider franchise.
These films matter to Disney as major cinema releases and to audiences following the MCU’s continuing story. Knowing how the films and characters connect helps explain why a Spider-Man film and an Avengers film can both be important to the same year’s slate.