What is “Ghost World?”

That was the unexpected $2000 'question' in yesterday's Double Jeopardy category of "Graphic Novels on Film." This a day after Spiegelman was name-checked in a category about New York City. What is going on here? The 'answer' was something like "In this film, Enid and Rebecca are best friends entering adulthood" or something like that (I honestly don't remember, it was too surreal, I was discombobulated). Sadly, none of the contestants responded. Other questions in the category were about 300, The Road to Perdition, The Crow, and From Hell.