It is possible to write a production schedule and budget solely based upon a script.
If you have a storyboard or other elements of audio visual design, these would help to clarify things and may speed up the budgeting process.
Of course, the final budget depends upon factors such as star salaries and inflation. We may ask whether you know who your cast members are, and whether you’ve decided upon a location. If you don’t know the answer to these questions yet, don’t worry, we’ll write out which assumptions we’ve made and leave room for change.
We make our budgets and schedules adjustable, because we know that changes can happen for creative, economic or practical reasons.