Just watched Minimalism: A Documentary About the Important Things. In brief, an interesting reflexion about our totally consumption-driven societies. A testimony about today's constant grasping for material goods that keeps people away from what is really important. The documentary presents a simple philosophy of life focused on accumulating less stuff, on letting stuff go, on assuming that less is more.
Of course that Minimalism is a reflexion biased, based mostly on an attitude towards life that only makes sense in developed societies, namely among middle and upper middle-class groups where consumption can today be assumed a superfluous activity, where very reasonable life standards are taken for granted. Nevertheless, it's a good reflexion.
The documentary is available on Netflix. You can also have an 18 minutes summary in this TED Talk.