This is a long documentary that definitely is worth watching. It will require your focus, because the thoughts are complex and will require a critical mindset. It addresses all kinds of social and economic assumptions and puts everything together. You can skip the intro, which is very weird, but trust me, it gets better. It's not really your Friday night film, but you will learn a great deal that is relevant to our current economic situation.
Addresses agriculture, urban design, electricity, health care, origins of violence, child development, under-utilized technologies, and surprising statistic on innovation (it is greatest in egalitarian societies).
I don't agree with 100% of the conclusions, but there is a startling amount of truth in them.