What parents need to know
Parents need to know that Riddick is the third movie in the Vin Diesel sci-fi/action series that began with Pitch Black and The Chronicles of Riddick. There's strong sci-fi violence, with lots of fighting, shooting, stabbing, blood, and gore, including alien guts and a scene in which a blade goes through a man's head, and the top portion of his skull slides off. Human characters die, and a lovable alien dog is shot and killed. This installment amps up the sexual content, too; there's toplessness and full-frontal female nudity, as well as strong sexual innuendo. Language includes several uses of "f--k" and "s--t," as well as other words. Minor drinking and smoking are quickly shown in some scenes. It's been a long time since the last Riddick movie, so many teens may not be familiar with the franchise, but you don't have to have seen the previous movies to understand what's going on.