Arts news and reviews with John Wilson, including an interview with singer Chris Martin and drummer Will Champion from Coldplay, who talk about the release of their fourth album and the pressure of life at the top. The writers behind The Likely Lads, Dick Clement and Ian La Frenais, have adapted their television show for the stage. John and writer David Almond, who grew up in the North East, review the result. There's also a review of the Oscar-winning documentary, Taxi to the Dark Side, directed by Alex Gibney. Plus a report on an exhibition of work where the subject of the portraits have the eye condition Macular Degeneration.