I’ve asked people sitting nearby to stop checking their phone as the glare can be very distracting. I might be immersed in the film but keep getting pulled out of the story by the distractingly bright light.

I also try to patronise cinemas that remind viewers at the start of the screening not to use their phone at all. I stopped going to the Cineworld near me because there was too much phone use (both calls and checking alerts) – and Cineworld had stopped the reminders at the start of the film for people to switch off their phone.