Gorilla Theatre(TM) is an advanced improvisation show for experienced improvisors, who are also skilled in directing improvisation. A cast of 4 - 5 improvisors take turns directing each other in scenes. The Audience is invited to reward, or punish the director of a scene by yelling "BANANA!" if they liked it, or "FORFEIT!" if they didn't. One of the hallmarks of Gorilla Theatre is the inclusion of a 'live gorilla' (a performer in a gorilla suit), that adds an element of spectacle, mask work, and playful misbehaviour.

This official guide book, approved by Keith Johnstone, is a resource for information and inspiration about how to play Gorilla Theatre(TM). It has been created to provide assistance for groups just starting out, to give direction to those who are unsure if they are heading in the right direction, and as a reminder to groups who have been playing a long time.

Here you will find information about the history of Gorilla Theatre(TM), the skills needed to play, the spirit and
theory behind the concept, as well as practical information on the structure, the components and how to put them together in performing the format. Throughout you will find useful Keith Johnstone quotes, suggestions that might inspire discussion points with your group, and interesting Gorilla Theatre(TM) notes to aid you in successfully and enjoyably playing Gorilla Theatre(TM).

Gorilla Theatre(TM)is a registered trademark. To produce or perform Gorilla Theatre(TM) you must obtain the rights through the International Theatresports Institute (ITI).