We live in the age of the digital remix. The tools of creators, that a generation ago were available only to huge studios and professionals, are now available to anyone with a smartphone. But the meme culture, remixes, and fan fiction may have legal limits as "derivative works" that may or may not be considered "fair use" under copyright law.
In a recent viral phenomenon, fans of the 2007 Pixar/Disney movie RATATOUILLE created a "musical version," attracting big-name talent and huge buzz among the younger generation looking from relief from COVID-related "safer at home" orders. Does Disney have the right to shut it down? Probably, but the Mouse House decided to let this one get away and benefit from the free publicity since #Ratatousical was a short-lived charity effort.
But the last chapter on this copyright-enforcement story has not been written... yet...