Eva Clark, Molly Grapentin, Tom Bruckner, Giorgina Maxwell, Amelia Monk and Georgia Hodgetts are part of the third annual Performance Ensemble production It Wasn't Me.

Today marks the students' third day devising a piece of theatre with monologues, dances and vignettes after starting an intensive rehearsal schedule on Sunday.

Director and former Warrnambool woman Jennifer Monk said her program encouraged local talent and self-expression in a "supportive environment".

"It will end up as a 20 to 30-minute independent piece of theatre," she said.

"They learn about acting and training ... and they get the experience of performing in front of an audience."

The group is rehearsing at Robin's School of Dancing before technical and dress rehearsals and a performance at the Flying Horse Inn Bar and Brewery tomorrow .

It Wasn't Me will explore a variety of issues including change, peer pressure, family and friendships from a young teenager's perspective.

Ms Monk said the program, bolstered by the success of 2010 production I Dare You and 2011's Dear Diary, was about the students' theatrical development.

"They are the writers and the performers," she said.

"I think it makes it more exciting because it comes from them.

"It's important in this industry to create your own work.

"It gives them an idea of what it's like if they actually pursue this."

The students, aged between 11 and 13, come from Warrnambool, Portland and Terang and have been involved in their school productions or Ms Monk's monthly workshops.

Ms Monk, also a performer and producer, is based in Melbourne but conducts workshops in Warrnambool and Sydney and will run a similar program in the United Kingdom later this year.

Visit jennifermonk.com/actingworkshops.htm for more information on Ms Monk's performance workshops.

It Wasn't Me starts at 6pm tomorrow and is free to watch.