Billericay Operatic Society is an amateur musical theatre society based in Essex that has been performing since 1929. We perform our main show at the Brentwood Theatre in March each year. There are lots of ways to get involved with us if you share our passion for musical theatre. Get in touch via our Contact Us page. We would love to hear from you!



BOS produce one musical show each year at The Brentwood Theatre, Brentwood in March and smaller shows / concert throughout the year.
We are always on the lookout for new members to join us; both on stage and behind the scenes. If you would like more information about joining or would like to be added to our mailing list for future show information please contact us now.


Sunshine on Leith

Sunshine on Leith follows the highs and lows of Ally and his friend Davy as they search for nomality after returning from a tour in Afghanistan. Families, friendships and life are not all plain sailing in this funny and moving story about love and life.

Ally’s marriage proposal is rejected by his childhood sweetheart, a nurse disillusioned with the part-privatised NHS, moves to the US to seek career fulfilment instead. Meanwhile, Davy gets a job in a call centre while his parents war over the discovery, years on, of father’s infidelity.

Sunshine on Leith is a vibrant, energetic piece of musical theatre, loved by audiences and critics alike which had a successful film adaptation released in 2013 starring Jane Horrocks.

Dates: Tuesday 28th March 2023 to Saturday 1st April 2023
Location: BRENTWOOD THEATRE, 15 Shenfield Road Brentwood Essex CM15 8AG


This amateur production is presented by arrangement with Music Theatre International
All authorised performance materials are also supplied by MTI www.MTIShows.co.uk



“Overall, I had a very enjoyable evening watching Lust the Musical. The company seem like a friendly group who obviously love what they’re doing and work hard. It was such a shame that they had to cancel their performance so close to opening last year but I can honestly say I am pleased that it’s the first musical I have seen since lockdown has ended and I look forward to seeing your next production.”

Zahna HullLust the Musical

“He's very watchable as the charismatic shyster “Professor” Harold Hill – confidently talking the talk, eyeing up the folk of River City from front stage, enjoying a great vaudeville duet with Matthew Carpenter as his old mate Marcellus, flirting suavely with his Librarian Marian – an excellent performance from Anna Green, even if it's hard to see her as an old maid ”

Michael GrayThe Music Man

“Costumes were excellent and the lighting was very well designed and beautifully executed. It is lovely to see full houses for any society so well done the Billericay for another entertaining show.”

Tessa Davies Oliver!

“ The Quartet, also known as the school board, started off as people who couldn't get along, but when convinced to sing by Harold, could not be separated. This group of four, Jeremy Martin, Niels Bradley, Nik Graham & Ray Bowler, probably had the hardest sing of the show having to perfectly coordinate and harmonise, something they did well enough.”

The Unnamed Critic The Music Man

“I was intrigued to see how Billericay Operatic Society would manage to perform the show in such an intimate venue. The answer is very well indeed! Having only seen The Producers in large theatres before, with lavish sets, it was an eye opener, for me, to see that it could be done on a smaller scale. Whilst it was impractical to do the large, showpiece, dances that were in the original show, choreographer Jane Granby did create the effect that was required of the script.”

Tessa DaviesThe Producers

“Costumes were excellent, the attention to detail was superb and, yes, I did notice that the ladies had brooches on their coats, absolutely right for the period. It is the small touches like these that make the difference to the ‘look’ of the show. As a costume designer myself, I would congratulate the costumes and props team. I think that the Betty puppet was produced by the company, if so, it was excellent.”

Tessa DaviesBetty Blue Eyes