CINEMA
Don’t talk during the opening credits
Not talking during the film should be a given. It is OK to talk (quietly) during the ads and it is similarly OK to talk (even more quietly) during the trailers. But the microsecond the film starts then you shut up.
Do not kick the seat in front of you, or even press your knees against it
Actually kicking the seatback, from a seated position close behind, is almost impossible. What we mean is do not jam your knees against the seatback so the person in front is shoved forwards as if in the world’s least enjoyable funfair ride. Do not do that.
Do not