Re: Jewish wedding?
i've been and they're super fun! yes, be covered with the sleeves and knees, but interestingly, the same rules didn't seem to apply to cleavage at the wedding i was at- we weren't in the orthodox crowd though.
they're usually very formal events- the signing of the ketubah is done privately, as far as i know, amongst witnesses and the rabbi only so you'd be there for the ceremony afterwards.
the ketubah's are gorgeous, btw, each one is differently designed and very intricate.