'People are ready for a deeper, much more systemic critique and much more grassroots, radical solutions,' says film's director Avi Lewis

He has been called the “superman pope”, and it would be hard to deny that Pope Francis has had a good December. Cited by President Barack Obama as a key player in the thawing relations between the US and Cuba, the Argentinian pontiff followed that by lecturing his cardinals on the need to clean up Vatican politics.

Tackling the problem of climate change is a serious ethical and moral responsibility, Pope Francis has told negotiators from around the world meeting for a climate summit in Lima, Peru.