The story of a rundown farm restored in California

In a week when the UN releases a report warning that the Earth is under a major threat because of plant and animal destruction, along comes an environmental success story.

The Biggest Little Farm tells the story of the reawakening of a California farm through regenerative agriculture.

Directed by John Chester, it is an environmental documentary presented as a home movie.

BBC Talking Movies’ Tom Brook reports.

Talking Movies can be seen on BBC World News