I've never heard of any such law, but the cinema owner is well within their rights to require that if they wish.
As you say, though, it's totally unnecessary. People having the phones isn't the problem, it's people being dorkwads that's the problem.
This reminds me of a Firefly quote.
"If you take sexual advantage of her, you're going to burn in a very special level of Hell. A level they reserve for child molesters and people who talk at the theater." --Shepherd Book | |
What Luddite made that law? Technology is not to blame for bad manners. Turn the ringer off before entering. Walk outside before answering. It's just like going to get popcorn or going to the bathroom.