Ethos, is a documentary to watch ! It is in its entirety on YouTube here for your viewing. The information provided in the film is to get you to think about how we keep corporations in business, if we changed what we bought, we would see the change we want. It goes into other important areas (Banks, Private Bankers of Federal Reserve Bank ,Corporations,ect..) that many people fail to see.
There is an abundance of good documentaries on the internet, you just have to research and depending on your viewing choices, you tube will offer similar suggestions based on your areas of interest.