There not porn stars! The passion is a wonderful movie. People are getting saved because of the movie. Now to whether Mel Gibson said that about his wife I don't know, but it's always according to your faith.
Example: There are many who believe the correct baptism is one of these: "In the name of Jesus" "In Jesus" "In the name of the father, the son, and the holy ghost" Now which one is correct by the bible I will not get into BUT: If I have been saved, and I want to be baptised as part of my expression of my salvation in being buried and risen with christ; Then God looks at my heart. No matter which way I am baptised it's according to my faith, if I am doing it for Jesus for he knows my heart. He will not account a baptism whether its right or not because of what words were spoken over you. (Although you do not have to be baptised to be saved)
I've said that to say this: No matter whats said to go on in the background of the movie whether true or false; God will use this movie to spread the gospel. People will get saved, lives will be changed. I think everyone should go see this movie. Focus needs to be on christ not the actors who were in it. This is just a diversion of satan.