Tesla CEO Elon Musk, in between his attempts to back out of his bid to take over Twitter (NYSE: TWTR), found the time to watch and mull over Amazon (NASDAQ: AMZN) Prime Video’s most recent original production, the Lord of the Rings adaptation The Rings of Power.

The richest man in the world tweeted that JRR Tolkien, the author of the fantasy series the show is based on, must be “turning in his grave,” and made questionable claims about the show’s characters.

Musk has long been a critic of Amazon’s founder and CEO, and second-richest man in the world, Jeff Bezos, so the unwarranted review of the show comes hardly as a surprise. The first of five planned seasons The Rings of Power reportedly cost Amazon over $700 million and is the most expensive TV show ever produced.

A Twitter user asked famed fantasy author Neil Gaiman to weigh on Musk’s opinion on the show, and Gaiman basically dropped the mic.

Gaiman, aside from being a fantasy author who also recently developed and executive produced a successful Netflix adaptation of his comic book series The Sandman, has nothing to do with the Lord of the Rings adaptation.

The author also developed and executive produced the Amazon adaptation of Good Omens, a book he co-wrote with the late Terry Pratchett.

The Rings of Power, despite Musk’s ramblings, has received mostly positive reviews from actual critics and was able to achieve a record of 25 million viewers for Amazon upon its Labor Day weekend debut.

Musk’s ramblings, meanwhile, did not seem to achieve much except perhaps inviting racist outrage over the show’s casting.

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