The Biograph in Wilton Road, long defunct. So notorious that even I never went (and I was a Scala veteran), though that was largely because I heard a rumour that they had such a problem with audience behaviour along the lines you describe that they routinely kept the auditorium lights on throughout.Zazou dans le Metro wrote:"Ooh, I like the sound of that", she replied and so a copy of Time Out and a tube journey later we ran into a cinema near Victoria station and eagerly took our seats with seconds to spare. Such was our hurry I didn't pay too much attention to the fact that the numerous male ushers were all built like brick shit-houses and that the carpet looked and felt like crystallised tarmac to walk over.
It had a really bizarre and seemingly totally random programming policy - do you remember what Don't Look Now was double-billed with? Probably something like The Care Bears Movie, I imagine.