2 or 3 times a year here in the UK, which is really sad, as I used to go once or twice a week without fail, and that was way before any of these weekly/monthly passes came in!
It's just dreadful now - people talking all the way through films, constantly texting (or even making phone calls!), generally poorly behaved, it's just an expensive unpleasant experience (though IMAX and festival shows tend to be better, to be fair.)
I go to Paris quite often and catch up on my cinema-going there where audiences are far better - I usually go and see something virtually every night!