“Tonight should see the unveiling of perhaps the most breathlessly awaited – and mysterious – theatrical event of the year. But, it turns out, audiences are going to have to wait another two nights to see the new play by Mike Leigh at [London’s] National Theatre – because the dramatist and film-maker has yet to finish it.” The show’s initial run has been sold out for weeks, even though virtually nothing is known about the plot. (Even the title was only unveiled late last week.) “The play will be Leigh’s first since 1993, and his first creative outing since the success of the film Vera Drake, which won the Golden Lion at last year’s Venice film festival. His best-loved drama is 1977’s Abigail’s Party.”