Jon Stewart called out the goblins in “ Harry Potter ” films as antisemitic caricatures. The fantastical, hook-nosed beings who control Gringotts Wizarding Bank in the movie adaptations of author J.K. Rowling ’s book series perpetuate negative stereotypes of Jews, the comedian said in a December episode of “The Problem With Jon Stewart” podcast that went viral on Twitter on Tuesday. Stewart, who is Jewish, likened the creatures to “a caricature of a Jew” from the early-20th century antisemitic text, “ The Protocols of the Elders of Zion. ” “J.K. Rowling was like, ‘Can we get these guys to run...