I have chosen the first scene in Antigone, where Ismene and Antigone discuss the events of the play. If I were to direct this, I would have Antigone on a proscenium stage and Ismene enter from the audience, implicating them as complicit in the dishonorable act of not burying Polyneices. Ismene (if sound works out okay) would be on the same plane as the audience, and would turn no further than a quarter angle out. Antigone’s rage would be accusatory and directed at the audience, in an effort to prevent them from being on her side by making them shut down because human’s don’t like to be yelled at.
Conversely, Ismene is hidden in the audience almost. She is a part of them, speaking for them. Loyalty to the father is the overwhelming sentiment, and the intellectual argument is Ismene’s. I would also show the two brothers on stage as actors. One would be in white burial cloth, the other in really bloody and torn war rags. At the end of the they would be looking at each other on opposite sides of the stage facing stage left and stage right respectively. The battle would be reenacted as Antigone describes it. They would cross the stage and die on the opposite sides with a flash of red in their spotlights.
As Antigone and Ismene’s argument cools down, the spotlight on Eteocles would gradually brighten, maybe rose light to make him look nicer, while harsher ugly light would shine on Polyneices and eventually fade. Ismene would walk proudly through the audience to the doors, with Eteocles following almost angelic. Polyneices, hit by a red low light only, would remain on stage, dead. Antigone would be upstage of Polyneices by the end of the scene, on a stair leading up to a raised platform, almost at the level of the middle of the audience. She would hold a lingering glance at Polyneices, then look angrily at the audience.