Taking photographs and using your phone during a theatrical performance is usually considered bad theatre etiquette. These aren’t obscure rules used by a small group of theatre snobs to tell who’s a newbie and who’s a fellow member of the elite. They’re announced to everyone attending the show (sans late arrivals and people using the bathroom). Most shows, including Beetlejuice, have a pre-show announcement that happens right before the show begins. The announcement says something like “the use of any recording device is strictly prohibited” and asks the audience to turn off their cellphones.
I normally wouldn’t do this, but because the Fediverse is small and it’s semi-relevant… https://kbin.social/m/Musicals. There’s currently a bug that makes !communityName@instancelinks like the one I just wrote not always federate out properly from Kbin, so here are some alternative links to the same place: @musicals and https://kbin.social/m/musicals.