just a side note on that essay:

The Lion King is, much as this pains certain ethnic groups to hear, a retelling of Hamlet. Disney has, for pretty much its entire history, made a fortune out of using stories from the public domain for their own works and then copywriting their take on them. they've managed on numerous occasions to lobby congress to have the duration of copyrights extended in order to preserve their winning tactic.

Harry Potter follows, in many places, the archetypes for the christian story. So does the Matrix (which, by the way, was not written by the wakowski brothers, however its spelled, but by some black woman who submitted the script years earlier, which they then stole after rejecting - and they got sued for it and lost).

When Frank Herbert and David Lynch sat down to plan out the movie for Dune, they found several points of similarity between Dune and StarWars, but chose not to persue a plagarism suit against george lucasm, i believe largely because those points of similarity were not distinctly original enough to Herbert's work. Its worth pointing out as well that Lucas was inspired heavily by akira kurasawa as well as the western chrsitian redemption archetype, and that Dune was, at least partially, a novel exploring the messiah mythology.

there's an awful lot quasi or outright theft of ideas in there. but note: either those ideas were in the public domain (in the case of shakespeare), the ideas were genuinely used in new enough ways (in the case of star wars), or the theft of intellectual property was exposed and punished (in the case of the matrix).