Ourscreen lets you call the shots at selected cinemas
[Philip Lelyveld comment: In the US we have Tugg.com, in the UK they have Ourscreen.]
Ourscreen is a concept ported over from the US where groups of people can arrange to see a film at their local cinema that's not on the regular listing. It functions in a similar way to Groupon, in that a showing can be booked but is only confirmed once a certain number of people buy in. The number is based on an estimate you give, which also affects the ticket price. So if you think you can draw a good crowd, you'll benefit from cheaper tickets, but the threshold to confirm your booking will be higher.
In case you're worried about finding enough friends to pile in with, screenings can also be organised as private or public viewings -- although this does also open your perfect cinema experience up to the uncertainty of sharing with (possibly loud) strangers. The website currently has around 200 films to choose from, ranging from new releases such as The Borderlands, to cult classics like Groundhog Day andThe Evil Dead, but there are hopes that many more will join the roster soon.
See the full story here: http://www.wired.co.uk/news/archive/2014-03/21/ourscreen-crowdsourced-cinema