Brian Cox, Brighton i360, Chilcot at Edinburgh festival, Ernesto Neto.

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The actor, Brian Cox, joins John Wilson to talk The Carer, a new comedy about a retired Shakespearean actor suffering from a form of Parkinson's disease that has left him frustrated and gloriously grumpy. John travels to Brighton to climb what is now the world's tallest moving observation tower, the British Airways i360. At the top he meets its architects, David Marks and Julia Barfield, who also created the London Eye. Comedian Bob Slayer explains why he is enlisting fellow performers and the general public to help him read the Chilcot Report, all 2.6 million words, from start to finish, at this year's Edinburgh Fringe Festival. As we continue our series of interviews with artists working in Rio, today Kirsty Laing visits the visual artist, Ernesto Neto, at his studio where he creates crocheted sculptures inspired by nature.