How are big movie production budgets handled?

Question

Big movie productions easily have budgets of hundreds of millions, even small films too. I often wonder how the money is handled.

Who is in charge of it? Do the filmakers just go up to the guy and tell them they need this much for that set piece/scene? Or is it the directors themselves?

And how do they estimate how much the movie is going to cost?

Sorry if i put in the wrong flair, I think Other would be more appropriate.

Thanks in advance.

In: 2

Answer 1

The producer is in charge of the money. The production company raises the money and writes checks to pay people, just like any manufacturing business.