Me and my friend were watching a film in the cinema tonight. She doesn't wear a watch and must have been checking her phone for the time - its a habit of hers to do this, or to ask people the time. I was sitting next to her and I didn't notice it.
There was an empty seat to her other side between her and a woman. The woman suddenly boomed out in the middle of the film, "If you want to play your phone, you can go outside and do it instead of in here".
It was mortifying, and she interrupted the film for me. I was really embarrassed for my friend, but we didn't say anything.
At the end of the film, as we were standing up to leave, I said to the woman "I don't really care if you were disturbed by a light during the film or not, I don't want to have to the film interrupted by your booming voice". She then started arguing back (she said something like "Oh you'd like to be a cheeky one, wouldn't you, and some other stuff) but we turned our backs towards her and her husband so that she was talking to ourselves, put on our coats and left.
Kind of ruined the film for both of us. Normally I find going to the cinema relaxing!