"And some Jewish people saw anti-semetism in The Passion of Christ. Would they be justified in vandalizing the cinemas that showed it?"
No, see, that's the kicker. You not only have to "see" something; you have to be right about it.
Pushing an old lady out of the path of a speeding bus is an entirely different thing from pushing an old lady into the path of a speeding bus.
Liberals vandalizing theaters showing The Passion is not morally equivalent to decent people vandalizing a theater showing Farenheit 9/11.
So some people are in the right to vandalize theaters, and some people are in the wrong. Operationally, government will have to decide, then, who's right to vandalize theaters, and who should be arrested for doing so. Correct?
There is no difference. Unless you own the theatre, you have no right to vandalize it. If you don't like what's showing at the theatre, open your own theatre.