Two new dystopian novels by the scientist Susan Greenfield and academic Martin Goodman give Matthew Sweet the chance to ask whether dystopias ever really go away, and even if they don't do they ever say anything constructive about the future? Henry Gee joins the discussion. Director Ben Wheatley's latest work A Field In England sits squarely in the middle of the honourable tradition in British cinema of horror films set in the country. Wheatley joins Matthew along with the writer Iain Sinclair to discuss the genre. And Matthew reviews the Royal Academy's latest exhibition 'Mexico: A Revolution in Art,1910 - 1940,' with Sarah Kent and Amanda Hopkinson.