The Private Life of Henry VIII (1933) is on the surface a partial chronicle of the marriages of King Henry VIII of England, but, underneath, the film is on the human instinctual urge of aggression. With unchecked power, such as in the case of an absolute ruler or in the international arena, the instinct can be quite dangerous. In other words, the film demonstrates just how unsuited human nature is to the political type of absolute ruler and a world of sovereign states sans something like what Kant refers to as a world federation that could provide some check and balance to wayward, aggressive states, which in turn are really just human beings.
The full essay is at "The Private Life of Henry VIII"