Today's cinema is a global art form, it is impossible to make movies for a market the size of France, representing no more than 4% of the world's total.
Every time you work, you have to do it all over again, to rid yourself of this dross. I suppose for a person who is not an artist or not attempting art, it is not dross, because it is the common exchange of everyday life.
If you practice an art, be proud of it and make it proud of you It may break your heart, but it will fill your heart before it breaks it; it will make you a person in your own right.
Writers want to summarize: What does this mean? What did we learn from this? That's a very 19th-century way of thinking about art, because it assumes that it should make our lives better or teach us something.