Thematically, the tension between chaos and order in King Lear is effectively that of anarchy and monarchy. It is when Lear abdicates the thone that a state of chaos begins to develop within his kingdom. This may be represented in a production through a variety of means, ranging from symbolism to costuming to trundicated dialogue.
The Brook adaption is good for 'chaos', for almost the entirety of the film revolves around a chaotic, absurdist depiction of the play's events. This can be clearly seen in the battle scenes, where the camera is tinted, limiting light and conveying confusion. Additionally, order deteriorates in terms of relationships, as seen by Act III, Scene VII, where the alteration of dialogue presents the servant as not acting heroically, but instead participating in betrayal, I have served you since I was a child, also seen in the boorish behaviour of Lear's knights.. This sense of chaos pervades the film, and is an important part of Brook's interpretation.
Apparently, it's good to use hypothetical productions for a question of that order, basing them upon real ones but adding other elements to strengthen your argument, like say. In the author's production, chaos is a central aspect of the text, and is thus a vital aspect of the depiction.. This is seen in.. (But more eloquently written.)