"(...) A good movie is precisely the one in which the camera disappears, when we are no longer aware of watching a movie, while an avant-garde film tries to turn the camera to itself and show the hidden device. A jocular way of understanding this would be to compare the reaction of a human and that of a cat when we point to an object with the finger; while the human looks beyond the finger trying to discover the object to which the finger points, the cat stares at the finger; in this sense, the cat is avant-garde, it is more interested in the medium (the finger, the camera) than the object pointed."
January 1, 1970
https://en.wikiquote.org/wiki/Julio_Cabrera