Director: Ava DuVernay

This critically-acclaimed documentary derives its title from the 13th Amendment, which banned slavery—except as punishment for a crime. (Seriously, it's right there in the Constitution.) From there, Ava DuVernay enlists the expertise of scholars, activists, ex-convicts, and politicians to connect the dots straight to today’s mass incarceration system, which disproportionately criminalizes African-Americans. This is a lesson you can get right on Netflix. —Dria Roland