I Don't Know But...
I watched this at eleven, and I loved it! But I think it really depends on who's watching it, and what they generally hear/play/watch/etc. I think it was fine for me, but of course that highly depends. I wasn't scared at all. Some kids may be... This depends on what the parents think, but I'll say some.
-- There's lots of gore, but it is highly comical. --
-- There is plenty of sexual references, and some other stuff, but it doesn't show anything. --
-- Sure, there's tons of extreme cursing, but that definitely depends on the family. If a kid has older siblings, chances are, they've heard a lot of it.
I don't know what else to say. --
What other families should know
Too much violence
Too much swearing