Public place

Last night my wife and I went to the cinema,we had a very good seat,the movie was interesting.But we couldn't enjoy it,there is a man he talk on his phone loudly,every one got angry,in the end,I can't bear it,'Couldn't you shut down your phone',I said angrily.'It's none of your business',the man said rudely,'It's a important conversation for me,I must answer it'.
Some people always think that their thing is the most important,but please regard of where are you stay in.A public place or a private place.As society,we must under the rule of public,we must pay attention our behavior.