Less than a week has elapsed since it all started going wrong, but I think it's safe to say that more or less every possible angle on the Secret Cinema Back To The Future debacle has already been covered elsewhere. I thought I had a new one myself, and originally the whole of this first paragraph was based around it. And then I had to bin it when I decided, just to be on the safe side, to see if anyone else had recently used the phrase "your cousin Marvin Cinema."
Nevertheless, here's an angle that might be of interest to the lost hordes left wandering around Hackney in fifties gear after the BTTF cancellations. Because right now, in another part of East London, there's a second theatrical promenade production which immersively recreates 1950s life inside a found space. Yellow Earth's The Last Days Of Limehouse, however, has been made by people who know what the hell they're doing.