Unlike many of the robe-clad masses attending Secret Cinema with me I didn't pay for my ticket to Secret Cinema presents Star Wars: The Empire Strikes Back.

At this point, I'd normally be talking about the wonderful spectacles all may behold in the *REDACTED* London venue, a former *REDACTED* works but, as you can see, the price of my passage is an agreement to remain tight lipped.

So I'm going to talk about cost. If I and my companion had forked out, it would have cost us £78 each for the tickets. For those not wielding a scientific Casio, that's £156 just to get in.

Fair enough, the organisers' ambition is to put it on a par with the West End. For creativity and inventiveness, it's a winner.

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But once in there you're also trapped in a monopoly. Food and drink further sap your monetary reserves to the point where you start wondering which European city you could visit for a similar outlay.

The sandy planet of *REDACTED* is hot. Not warm, but relatively uncomfortable. Following a lot of sweaty running about, which has some narrative justification, refreshment is a must. But £4.50 (sorry, Galactic Credits) for 330ml of beer works out around £7.75 a pint. We did pay for that.

Over the six hours I was in there, I consumed eight (about four pints) plus spending £8.50 for a falafel wrap and half a portion of chips. Bang £245 total, including entry.

I'm not even counting the cash spent by some on Jedi robes or replica lightsabers.

Don't get me wrong. As a night out there's a lot right about this event. Secret Cinema does best when it zeros in on personal interaction rather than big set pieces (although there are *REDACTED* of those) and the decision to go back inside in a series of more tightly controlled environment is the right one.

SPOILER ALERT: Westfield Stratford City is, fortunately, not in the background this time round.

The ratio of actors to audience members feels good again and there's a lot of added value to be extracted by engaging with the various quests and story lines on offer. It sizzles with interactivity again.

I was arrested by Boba Fett and became a Stormtrooper. All great fun, as the actors take great and praiseworthy liberties with the audience.

But I worry that as Blade Runner, the high point of Secret Cinema's output for me, was accomplished for less than £30 a head five years ago, the price inflation is not quite matched by the experience.

Some of the big set pieces land but others could be canned and the cash pumped back into the smaller, more charming aspects of the experience.

But I suspect Secret Cinema clings to these as they are pretty much the only parts that remain under wraps.

Perhaps to grow it needs to be braver. Drop the faux secrecy.

There wasn't a great deal in the structure of the event that didn't replicate its Blade Runner experience but, maybe, that's why I found it so enjoyable. That's why it gets four stars – one less.

But with wages rising as they are, I'm just not sure £300 is feasible next time round.

Secret Cinema presents Star Wars: The Empire Strikes Back until September 27, secretcinema.org/tickets.