Conspiracy theorists like Alex Jones, who exploded into the mainstream last week with his antics on CNN, are nothing new to British journalist Jon Ronson.

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The film is based on the memoir by author Jon Ronson and is a inspired by Frank Sidebottom - the persona of cult musician and comedian Chris Sievey from Manchester, who died in 2010.

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Meanwhile the Guardian's Jon Ronson is bemused that after concluding his whole family are ambiverts - which Cain defines as a mixture of extrovert and introvert - the group barely gets a mention in the book.

BBC: Do we really give introverts a hard time?