“Detesto ‘las sangrientas entrañas aurorales’ del Guernica de Unamuno pintadas sobre ‘el muro blanco de España’ de Lorca, demostrando con Lope de Vega ‘que suele dar gritos la verdad en lienzos mudos’.”
This is just too good not to share with you. It is the "smoking gun" quote that you might find once per chapter at most in your research. I haven't chased down the Unamuno quote yet. It might be from "El Cristo de Velázquez" since it is a perfect hendecasyllable.
Saura (not Carlos but his brother the painter Antonio) complaining about the kitsch surrounding Picasso's Guernica, quoting Unamuno, Lorca, and Lope de Vega.
There ought to be a name for what Saura does here with the Lope quote: the quote seems a perfect way of talking about Picasso: "truth often screams out from mute canvases." But, of course, Lope was not taking about Picasso for obvious reasons. Maybe: "anachronistic de-contextualization."