As you may know films are now "projected" digitally by satellite from Sweden(?) and so even Pictureville, which is one of the best cinemas in the UK (being part of the National Museum of Cinema,TV, This and That) does not employ a projectionist - because there is no film to project! And the days of ladies selling Butterkist on trays are long gone so presumably there are CCTV cameras monitoring the auditorium to check the audience is not slashing the seats and dancing in the aisles when Rock Around The Clock is shown.
But perhaps you could test that on your next family excursion?