Resolution criteria

This market will resolve to YES if the combined domestic (North American) opening weekend gross of Dune: Part Three and Avengers: Doomsday exceeds the combined domestic opening weekend gross of "Barbenheimer" (Barbie and Oppenheimer), which stands at $244,477,464. Otherwise, this market will resolve to NO.

• Source of Truth: Box office figures will be sourced from Box Office Mojo and The Numbers.

• Barbenheimer baseline:

  • Barbie domestic opening weekend: $162,022,044

  • Oppenheimer domestic opening weekend: $82,455,420

  • Combined total: $244,477,464

• Same-Weekend Precondition: If Dune: Part Three and Avengers: Doomsday do not premiere on the same opening weekend in the United States and Canada, this market will resolve N/A.

• Delays/Renaming: If either film is delayed but they still release on the same weekend, the market will wait to resolve. If either movie is renamed but remains clearly the same project (the third Denis Villeneuve Dune film and the fifth Avengers film starring Robert Downey Jr. as Doctor Doom), the new name will be used.

Background

"Dunesday" is the colloquial term for the scheduled box office showdown on December 18, 2026, when both Warner Bros.' Dune: Part Three and Disney's Avengers: Doomsday are slated to release in theaters. This echoes the "Barbenheimer" phenomenon of July 2023, where Barbie and Oppenheimer shared a release weekend and generated massive box office synergy.

Unlike Barbenheimer, which counterprogrammed two highly distinct genres, "Dunesday" pits two giant sci-fi/comic-book blockbusters with overlapping target demographics directly against each other. Industry analysts have speculated whether one studio will eventually blink and move their release date—especially since Dune: Part Three has already locked up North America’s IMAX screens for its opening weeks, leaving Avengers: Doomsday at a premium large-format disadvantage.