The Collider:
Twisted young talent Bobcat Goldthwait was one of the premier stand-ups of the 1980s. Sadly, when it came time to do movies, his awkward, is-someone-murdering-a-cat delivery didn’t translate too far outside the Police Academy series. But a few years ago, something unexpected happened: the loud, spastic comedian morphed into a quietly acclaimed writer and director of pitch black comedies like the sublime World’s Greatest Dad.
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My parents were very flexible when it came to watching movies at a young age. They sat me down and explained to me in detail what movies are and that they're not real or meant to be reinacted.
So I grew up on gory R-rated films full of sex and violence and I had no problem understanding that movies are entertainment and not real.
I think this is the type of film that you shouldn't show a 7 year old, but at 11 I was probably watching stuff of this level of maturity and I had no problems.