THEATRE. Magnifying glass over different association terms.In theatre, the “fourth wall” is the invisible wall that separates the actors from the audience. It is considered bad form for an actor to break the fourth wall and speak directly to the audience. The theatre cats here at The Starborn Revue, on the other hand, are happy to break the fourth wall, and demystify things about theatre for you. They’ll be letting you in on all kinds of theatre lore, traditions and superstitions in their posts. As posts are added, links will appear under the appropriate heading in the drop down menu.