Bart accidentally sees a brand-new superhero movie a month before it comes out and the world cowers before his newfound plot-spoiling powers. Thus, a new super-villain is born: Spoiler Boy. Heroic movie executives try to stop Bart before he succumbs to the temptations of ultimate evil.
Elenco: Dan Castellaneta , Julie Kavner , Nancy Cartwright , Yeardley Smith , Hank Azaria , Harry Shearer .