Strong presales have anchored trader sentiment for *Avengers: Doomsday*’s domestic opening weekend, with the film already exceeding $65 million domestically and $125 million worldwide weeks before its December 18 release. This momentum, fueled by record early ticket sales in key international markets and a high-profile trailer launch, has lifted implied probabilities for the 360–400 million and 400 million-plus brackets to a combined 70 percent. The wide spread in analyst forecasts—ranging from conservative 260–300 million estimates to bullish 425–450 million projections—reflects uncertainty around competition from *Dune: Part Three* on the same weekend, which is claiming a disproportionate share of IMAX screens despite trailing *Doomsday* in presales by roughly 3-to-1. Historical benchmarks like *Spider-Man: Brand New Day*’s 360 million record and *Endgame*’s 357 million debut further frame the contest, while ongoing marketing pushes and a December 16 China opening could accelerate final sales and clarify whether the film challenges or surpasses the current ceiling.