A screenplay is really an instruction manual, and it can be interpreted in any number of ways. The casting, the choice of location, the costumes and make-up, the actors' reading of a line or emphasis of a word, the choice of lens and the pace of the cutting - these are all part of the translation.
I really envy, in some respects, some of the people of faith I've known - A. J. [Muste], for example.