I think that if the child is mature enough to handle m movies then they should be able to watch them! Although ultimately it's up to the parents desicion what shows the kids are allowed tp watch, but i think that it's safe to say that a lot of 12 year old do watch M movies. People are saying that they shouldn't be able to watch M movies because of the Violence, Language, Sexual references etc. But isn't things like the news sometimes just as bad?? you see murders, suicides etc. on the news all the time. Watching M movies is preparing your child for what they're inevitably going to face in the future.