"In my opinion, the motion picture is the greatest medium of expression ever invented. It embraces all the other arts. The films that have the greatest unity, the greatest overall strength, and give the most satisfaction to the viewer, have been those in which a guiding hand was imposed in every section of the film's many divisions. Story, casting, settings, photography, clothes, acting, should all bespeak one mind. The director owes the audience an explanation. You have to make what you're trying to say understandable. What good is it if no one understands it? The scene doesn't have to be real. We deal with illusion, and the job of director is to control the illusion."

(King Vidor, nato King Wallis Vidor, regista, sceneggiatore e produttore cinematografico; Galveston, 8 febbraio 1894 – Paso Robles, 1º novembre 1982)