More than 20 people injured during a Sound of Music show at a Birmingham theatre are set to have their compensation claim heard in court.

Dozens of audience members at Sing-A-Long Sound of Music were hurt when the Alexandra Theatre stage collapsed on September 30, 2003.

They were among about 80 who had been invited on stage to participate in a pre-show sing-a-long. The audience members walked across what appeared to be an extension of the stage but was in fact the orchestra pit cover which collapsed plunging the theatregoers 15 ft into the pit.

Four of those seeking compensation for their trauma have had a four-day court hearing date fixed for November 21 at Birmingham County Court.

James Leo, an associate at Coley & Tilley, the Birmingham law firm representing the claimants, said the delay was the result of a dispute between the production company Sing-A-Long Productions Ltd and the theatre operators Clear Channel Entertainment ( Theatrical) UK, over who was responsible for the incident.

"The hearing in November will decide who is responsible."