For me, it is refreshing to see a rich, political story told in all its complexity, without simplifying the history for some imagined audience. Too many films these days seem to water down their content to make sure everyone understands what is going on. I suppose that means the audience will be more niche and specialized, but I don't think that matters.

The story of this remarkable group of intellectuals, writers, thinkers and journalists trapped in the political shenanigans and childish games of the ruling over-class is truly heartrending. I believe that what happened in those times is important for both Chinese and international audiences to acknowledge.

The use of archive - so often poorly done in documentaries - was inspired. The lightness of touch gave the film a real soul and sense of time. I was particularly tickled by the anti-Hu Feng cartoons: so bizarre and sinister, with their warped humour. Storm under the Sun is a thoroughly moving and rigorously intellectual examination of a hugely difficult and complicated subject.