It's essential not to have an ideology, not to be a member of a political party. While the writer can have certain political views, he has to be careful not to have his hands tied.
Modern American cinema seems to me superficial. The intention is to understand a certain reality, and the result is nothing but a photographing of that reality.
Most of the movies I saw growing up were viewed as totally disposable, fine for quick consumption, but they have survived 50 years and are still growing.
The writer needs to react to his or her own internal universe, to his or her own point of view. If he or she doesn't have a personal point of view, it's impossible to be a creator.