Avengers: Doomsday leads trader sentiment for the biggest 2026 opening weekend because its presales have already shattered records, exceeding $50 million domestically and $125 million worldwide months ahead of its December 18 release. The Russo brothers-directed MCU event film, featuring an expansive multiverse cast including Robert Downey Jr. as Doctor Doom, is tracking for a $300 million-plus domestic debut that could challenge or surpass Spider-Man: Brand New Day’s $360 million record from July. That earlier Sony release still anchors the 25.5% share through its proven franchise draw and all-time domestic opening. In contrast, The Hunger Games: Sunrise on the Reaping and Dune: Messiah sit near zero as their November and December tracking points to more modest $80–120 million domestic ranges despite solid presales and franchise momentum.