I only ever go to a local multiplex straight after school with friends, so it's nearly deserted and good fun with the other few patrons there, or a local single screen, which is very strict about talking and phones, so I can't say I've ever really had bad experience.
The couple of times I have, like the old people bitching in Berberian Sound Studio, a good "shut the **** up" always gets them to, well, do as said