TONIGHT'S Secret Cinema opening in Croydon has been cancelled at the last minute.
"It is with great regret we announce the cancellation of tonight's @secretcinema performance. We have contacted all ticket holders," the shows organisers posted on Twitter shortly before 6pm.
It is understood the event has been pulled because of licensing issues.
Angry fans took to the social networking site to complain about the late cancellation.
Bishely tweeted: "Half-way to Croydon and @secretcinema cancels on us. Not sure what kind of 'licensing issues' crop up 1hr before show time. Disappointed."
Another David Quilter posted: "Purposely booked opening night only to find its been cancelled."
It would have been the 20th production of Secret Cinema. Parent company Future Shorts has sold more than 250,000 tickets – which cost in the region of £50 – to its previous 19 shows.
Its Croydon run would have taken place every Thursday, Friday, Saturday and Sunday. It is unclear whether the rest of the performances have been cancelled.
They feature live music, theatre and roleplay, as well as alcohol and food.
The company's application aimed to reassure the council and police about potential trouble: "We are proud to say we have never experienced any crime or disorder. We have never had to eject a single person from an event. Our audience is not a rowdy crowd, they are first and foremost cinema-goers from a non-troublesome demographic."
Set building work began at the beginning of the month and rehearsals started on April 8.
It was not known what the film would have been but the application states it had a 15 rating.
The concept of the show is that filmgoers buy tickets for a set time and date without knowing what the film will be.
The location is a closely guarded secret. In the run up they are sent cryptic messages giving clues about where to meet and what to wear.
Previous films have included Casablanca and Ghostbusters.
