We regularly clean either vast areas of carpet, or enormous numbers of chairs very quickly and to an exceptionally high standard. The secret is to have the correct system in place, that's the right men, chemicals, tools, machines and procedures to make them all work seamlessly together, which takes a great deal of organisation and forethought to make it work. We've cleaned 850 dirty restaurant chairs in an 8 hour shift, that's seat cushion, front and rear panel and had them dry in an hour. Attaining that level of efficiency (which by-the-way gives you a huge competitive edge) is the result of looking back at previous jobs to see how the overall system can be made more streamline, or the result even better, or both. It is also important to choose the cleaning system that fits the circumstances and not opt for a lesser system that compromises quality for the sake of speed.
The trouble with cinemas is jobs like that often go to the lowest bidder, but with a well thought out system, you needn't skimp on quality to make the cleaning and the time taken fit the price tag, which if corners are cut could cost you repeat business.
Simon