06/24/2026
If you're building on someone else's work, 'transformative' is the word that decides whether you're protected or in court.
A derivative work uses elements of an original copyrighted work. Translations, adaptations, remixes. A transformative work is the narrower (and more famous) subset, where courts apply a four-part fair-use test to decide whether the new work adds enough purpose, character, or meaning to count as its own thing.
Our blog breaks down the framework, including how Cariou v. Prince and the Instagram screenshot exhibits unsettled the doctrine.
https://foundrylawgroup.com/copyright-copywrong-what-are-derivative-and-transformative-works/
Because in copyright, almost transformative isn't transformative.