<< Lucas gets it right on this next one,
the movie rocks,
your seats are perfect,
and some f&ckhead's cell phone goes off?
This is happening more and more in theaters. >>
I'll usually turn around and ask the person nicely to keep it down. Usually the person will get up and leave the theatre so as not to distract people. If that doesn't work a nice, powerful "shut the fsck up!" works very well.