Roots, but no Roots.
Ben-Hur, but no Ben-Hur.
Fantastic Beasts and Where To Find Them, but no Harry Potter.
The Mummy, but no The Mummy.
The last of the Hobbit movies, but not the other ones or the Lord of the Rings movies.
Star Trek: Picard, but no Star Trek: The Next Generation.
Ducktales, but no Ducktales.
XCom 2 by Firaxis, but not Firaxis's XCom.
The Mandalorian, but no Ewoks.
That one adaptation of Dune that they're making, but not the other ones.
Jurassic World, but no Jurassic Park.
(The joke is that all of the previous sentences end with things that came from already-existing IPs.)
Comments
The answer is that we'd only be able to go as far back as Happiness Charge