The story begins in 2015, when the Marvel Cinematic Universe (MCU) had already proven its formula. Early budgeting meetings focused on securing a solid production fund while preserving creative freedom for the ambitious crossover. That foundation set the stage for the financial architecture that would later support an unprecedented ensemble cast and cutting‑edge effects.
Fast‑forward to 2018, and the budget entered a decisive phase. As script revisions introduced new characters and complex time‑travel set pieces, the cost model shifted dramatically. The resulting financial turning points not only reshaped the film’s scale but also redefined how blockbuster budgets are negotiated in Hollywood.