High Quality Content by WIKIPEDIA articles! Castle Rock Entertainment Inc. v. Carol Publishing Group, 150 F.3d 132 (2nd Cir. 1998), was a U.S. copyright infringement case involving the popular American sitcom Seinfeld. Some U.S. copyright law courses use the case to illustrate modern application of the fair use doctrine. The United States Court of Appeals for the Second Circuit upheld a lower court`s summary judgment that the defendant had committed copyright infringement. The decision is noteworthy for classifying Seinfeld trivia not as unprotected facts, but as protectable expression. The court also rejected the defendant’s fair use defense finding that any transformative purpose possessed in the derivative work was "slight to non-existent" under the Supreme Court ruling in Campbell v. Acuff-Rose Music, Inc., 510 U.S. 569 (1994).