Where the writer leaves off, the director begins. Where the director leaves off, the actor begins. And where the actor leaves off, the audience begins. And so when you finally see the audience it's theirs now - it's theirs to reinvent, it's theirs to make up. The audience tells the story along with the film. And something happens, and actually it changes. And that's why as the writer it's not mine anymore. It's theirs.
The director is someone who can take all the intentions and make sense of them for the reality of a production. All scripts are too long, all written scenes are too long, all dialogue is too wordy. This is the inevitable dividend of being written in a room, alone.