In reply to Stichtplate:
Just seen it at Northants Royal and agree with comments to date. I was surprised by how faithfull it is to the book and film but also by the brilliant staging and very clever framing of the narrative (via the Clachaig, Sarah and the 'hippie'). Yes, there are some cringeworthy sections that could well be excised or shortened but maybe there help generalise the story for non-mountaineers. And yes, we do get a dose of "Brown girl ... ". Great night out, highly recommended.