About the film
The 4th Revolution: Energy Autonomy, also known as Die 4. Revolution – Energy Autonomy, is a German documentary film about renewable energy by Carl-A. Fechner, released in 2010.
It depicts a vision for a global society that obtains 100% of its energy from renewable sources and the complete reconstruction of the economy that this will require.
From the film's Wikipedia article (CC BY-SA 4.0).