* AdaptationDisplacement: Very few people know the film is based on a book.
* AlternateCharacterInterpretation: Utrilla: a WellIntentionedExtremist or a sadist KnightTemplar?
* BrokenBase: Any opinion about the goal, legitimacy and of the prison riot is sure to be conflicted.
* DracoInLeatherPants: Thanks in good part to his charismatic portrait by Luis Tosar, Malamadre is an incredibly popular character.
* RootingForTheEmpire: Possibly enforced by the fact that there aren't exactly good or bad guys on the film and that the Government are portraited as underhanded and incompetent, but it is not difficult at all to side with the inmates (especially Malamadre and/or Juan) over them.
* TooBleakStoppedCaring: A possible effect given the sheer sustained of the suspense in the film. At some instance the viewer could be waiting to Juan to be discovered and killed.