Every. Single. Time. I go to the cinema, there's at least one person who talks/texts/crunches through the film and generally does their best to ruin it for everyone. I usually feel too hesitant to say anything as they've already proven themselves lunatics who care not for others.
Last night it was LA LA Land. Absolutely brilliant, gorgeous film, ruined by some tosser who decided to loudly tap his foot throughout every musical number. He wasn't even in time.
I love watching films but AIBU to not spend any more money on going out to see them, because no one knows how to behave politely? We have Netflix, Google and Amazon video I suppose...