This past year, I have added language in my ceremonies asking guests to put away their phones & cameras. Now, I should explain that this is put into the 1st draft, which I send to the couple, and they have the option of removing it. I find that most people leave it in. They've heard the stories. And I can vouch for it - the stories are TRUE.
Of course, not everyone with a smart phone or an iPad is rude. And yet, many people seem to forget their manners when they're at a wedding and they want to get that one "perfect shot." I've seen a camera-happy relative almost bump into the groom as the groom was pouring a glass of wine. I've seen a bride barely able to walk up the aisle because guests were stepping in front of her to take pictures. And I hear the clicking and snapping throughout the ceremony.
So, my friends, please watch the video below. And don't be that guy.