I’ll be honest—I have not seen this film, nor am I sure I will ever see this film, but...
I DO NOT THINK THIS IS A FILM ANYONE ASKED FOR. EVER.
Making R-rated horror films out of obscure Hanna-Barbera shows seems like a dubious proposition at best, but who knows, maybe it’s brilliant? I liked “Meet the Feebles” (a pre-“Lord of the Rings,” REALLY fucked up Peter Jackson movie) back in the day, but I’m not sure that it’s a style that needs to be revisited.
Anyhoo, here’s the YouTube link to the trailer and it’s currently available for streaming. Maybe this film is worthy of discussion, maybe not.