Avengers: Doomsday and Dune: Part Three Set for December 18, 2026 Release Clash

Robert Downey Jr. and Timothée Chalamet confirmed that Avengers: Doomsday and Dune: Part Three will both release globally on December 18, 2026. The actors playfully dubbed this box-office clash "Dunesday," drawing comparisons to the 2023 "Barbenheimer" phenomenon. Avengers: Doomsday marks a major Marvel Cinematic Universe event featuring Downey Jr. as Doctor Doom, while Dune: Part Three concludes Denis Villeneuve's sci-fi trilogy with Chalamet reprising Paul Atreides. Fans and studios anticipate significant cultural and commercial impact from this simultaneous release.