With studios like Disney spending hundreds of millions of dollars on movies like Avengers: Endgame, there's a general impression that Hollywood likes to spend excessively without a care in the world, and without keeping costs in check.
And while there might be a bit of truth to that for movies that are basically guaranteed hits (like Endgame, which made over $1 billion in mere days), most of the time, the opposite is true. Film budgets - both production and marketing - are planned meticulously, ensuring that each project has just the amount of money that it needs.
Sometimes, movies are even forced to save money, whether that's by making significant changes to the script right before filming begins, trimming production expenses like housing and accommodation, or even re-using footage from older films.
Granted, these extreme measures are rare, due to the fact that having a handle on finances is one of the first boxes a movie will tick. But they do happen, and some of these cost-cutting tactics are proof that Hollywood will do whatever it takes to save a buck or two where possible.