Avengers: Doomsday vs Dune: Part Three on Dec 18 – pre-sales surge

Avengers: Doomsday pre-sales already over $100M domestic, tracking for biggest opening weekend ever. Dune: Part Three releases same day, creating a massive box office showdown. D23 trailer released; fan theory about RDJ's Doom having a Cillian Murphy variant. Both projected as billion-dollar contenders.