Hollywood is a showman's paradise. But showmen make nothing; they exploit what someone else has made. The publisher and the play producer are showmen too; but they exploit what is already made. The showmen of Hollywood control the making - and thereby degrade it. For the basic art of motion pictures is the screenplay; it is fundamental, without it there is nothing. Everything derives from the screenplay, and most of that which derives is an applied skill which, however adept, is artistically not in the same class with the creation of a screenplay.
Raymond Chandler