Ok sure.. "Before a script is fully finished" is a long way from "before a script was even written". Script rewrites happen throughout the whole process, even

Ok sure.. "Before a script is fully finished" is a long way from "before a script was even written". Script rewrites happen throughout the whole process, even well into post-production sometimes (with re-shoots etc).. That's not at all the same thing as "before a script is written".