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Ruby Wax's new documentary on mental health problems

20 July 2012 Last updated at 11:26 BST

Building on the success of her current mental health stage show, in which the audience is encouraged to speak openly about their own experiences, Ruby talks about her new documentary as part of the 4 Goes Mad season, in which she campaigns to break down the stigma that still surrounds mental illness.

Her new documentary sees her urging three workers to open up to their colleagues.