There are those who think poorly of talkbacks. They think theater, in many ways an ephemeral art, is to be experienced, not analyzed. This is the same argument made by those who think you shouldn't hold poetry interpretation classes.
The funniest aside takes place during one of Walters' most demanding sequences as disillusioned Brutus. What she breaks it off to say to her convict colleagues won't be revealed here, but it's a laugh-and-a-half.