I've said it before and others have done so before me too (no pun intended): Animated movies/shows/comics or whatever else you want to call certain things (graphic novels), are not just for kids. This is one of those cases and it's really a good one at that.

Now having said all that, it should be clear that this is not something you should be showing your (young) kids. But it can also be too much for some adults. While nudity is at a bare minimum (again no pun intended), the violence is dialed up to 11 as the saying goes. But it also has an interesting fantasy/science fiction backstory to hold your attention. There is according to the blu ray case more to it, which can be found online (will have to check that out).

The voice talent at hand also gives this a push. Especially if you are a genre fan (of horror), you'll be able to distinguish and recognize voices, which will further add to the "fun" (entertainment) you can have overall