So, it becomes an exercise in futility if you write something that does not express the film as the director wishes. It's still their ball game. It's their show. I think any successful composer learns how to dance around the director's impulses.
In some types of music I'm working out all the chords one bar at a time - the whole structure, because it's about that. And there are other pieces which are really about - okay, the melody is going to start here and play through to here.
I think that's one of the things that has always put me in kind of an odd niche. It's that all of my understanding of orchestral music is via film, not via classical music like it's supposed to be. To me it's the same, it doesn't make any difference.