Along with NY state law, unauthorized recordings or photos are also against the union rules that most actors are part of.
I just searched for specific language about it, but couldn't find anything beyond a general "We maintain strict phohibitions regarding the broadcasting, filming, or taping of..."
http://www.actorsequity.org/newsmedia/filmtaping.aspSpeaking of musicals, anyone seen Passing Strange? It's the most non-traditional musical on Broadway probably ever. HIGHLY recommended. The folks who wrote it are great musicians...check it out:
http://www.passingstrangeonbroadway.comSorry to get off topic a little, but these folks are friends of mine...