Leonardo DiCaprio presents this thought-provoking documentary about the fragile state of our planet's ecosystems and the dangers we face from climate change.

We've seen the devastating effects of natural disasters like Hurricane Katrina, but now scientists from around the world believe that unless we act immediately to cut carbon emissions and switch to renewable energy sources, humankind is in very real danger of becoming extinct.

The film explores how we arrived at this unfortunate predicament, blaming industrial civilisation for much of the damage and world leaders for allowing it to happen.

'The 11th Hour' has an impressive list of contributors, including former Soviet leader Mikhail Gorbachev, renowned scientist Stephen Hawking and many other top experts.

Certificate PG.