I watched the Gladiator, Saving Private Ryan and a few other violent movies with my son. He is 13, and I we do occaisionally take him to an R movie...depending on what it is.
Slasher films I am not a big fan of, but I feel he is mature enough for most movies that do not have a lot of sex in them. I think it should be up to the childs maturity. I will see this movie, but will wait until it comes out on dvd.
I really don't want to sit in the theater to watch the movie with a bunch of holy rollers...no offense to anyone, Jesus is important to many people, and apparantly Mel made a great film, but there are some people that view it is if it was written and directed by god himself. And with my luck, I would end up sitting next to one of those familys....noooooo thank you.