A cast of 50 youngsters have been hard at work rehearsing the classic production since October.

The cast would rehearse a number one way in the afternoon, then switch back to the old version that night.

The weeks were spent writing and getting ready while the cast rehearsed.

Prior to the filming, the cast rehearsed for six months.

The cast rehearses four days, and on the fifth the play is ready for the public.

The cast rehearsed for four weeks before they began shooting the film.

Before filming began, the cast rehearsed in director Kent's flat.

"Yes, it's believed the cast was rehearsing for an afternoon performance."

In fact, the cast had already been rehearsing with their new "virtual orchestra."

The show was dark for eight days while the cast rehearsed.