The use of good cinema in university teaching and research means adding a first-rate tool to academic work. Good cinema, in this work, is that which reflects the realities, not the dreams, that citizens receive every day as a derivation of the actions of the powers, a way of acting that cinema has captured with a high degree of fidelity. With this investigation into cinema as an explanatory vector of the interrelationships between powers, Communication and Journalism, we pursue, for the first time, something very typical of science: systematising a dynamic of a part of the teaching development of the subject Structure and Power of Communication taught at the Faculty of Communication of the University of Seville (Spain) by faculty assigned to the Sevillian School for Structure of the Information (SSEI).