This movies age rating is not for kids but it depends on parents opinions everyone has different things and limits for there kids.
I got the hole blade series for christmas and I loved it and I am only eleven so still it all depends on restrictions.
I didn't see much of this, but the parts I did see, were disturbing. Luckily it was on cable so they took out the rated R stuff, but there was still lots and lots of blood. Realistic blood. D: