#1 Earthlings (2005)
Using hidden cameras and never-before-seen footage, Earthlings chronicles the day-to-day practices of the largest industries in the world, all of which rely entirely on animals for profit.
#2 Food, Inc. (2008)
An unflattering look inside America's corporate controlled food industry.
#3 The Act of Killing (2012)
A documentary which challenges former Indonesian death-squad leaders to reenact their mass-killings in whichever cinematic genres they wish, including classic Hollywood crime scenarios and lavish musical numbers.