Emma Stone: Stone had to leave high school when she was presented with an opportunity to star in her breakout film 'Superbad.
Nicolas Cage: At the age of 16, Cage dropped out of Beverly Hills High School to pursue acting.
Al Pacino: The legendary actor and filmmaker struggled in high school with poor grades.
Katy Perry: The chart-topping pop princess dropped out of Santa Barbara Don Pueblos High School at the age of 15 to follow her dreams of becoming a singer.
Tom Cruise: Cruise originally went to school in hopes of becoming a priest.
Jessica Chastain: The 'Zero Dark Thirty' actress had too many absences to graduate high school.
Robert Downey Jr: The 'Iron Man' actor made his film debut as a child star and eventually dropped out of high school at 16.
Princess Diana: Lady Diana dropped out of school by the age of 16 after failing her O-level examinations—twice.
Jay-Z: Growing up in one of the projects of Brooklyn, the rapper dropped out of high school and started drug dealing.
Michelle Williams: The 'Dawson's Creek' actress attended several different high schools.