Adult animation isn’t something that gets talked about enough. Paving the way for today’s movie were things like Fritz the Cat, Lord of the Rings which is not expressly adult of course, and Wizards. Let us know if we should talk about Wizards in some form by the way. Other movies that firmly tie into a similar vein of Heavy Metal are American Pop from the same year and Fire and Ice from a couple years later. While a bunch of the animated movies listed or even not listed fall under the sex comedy, fantasy, or recreation of modern life, Heavy Metal is something else entirely. It’s an anthology sci-fi, horror, comedy, action, fantasy that has a rocking soundtrack and earns its hard R rating. It was held back from being on video for a while due to licensing issues but has become an endearing cult classic 44 years later.