John Wilson is joined on stage at the Hay Festival by one of the biggest selling crime writers in the world – Lee Child and Cerys Matthews sings one of Dylan Thomas’ poems. In a rehearsal room - ballet star Daria Klimentová warms up for her last dance. Artist Cornelia Parker tells John why she’s curated a black and white zone within the Royal Academy Summer Exhibition and he talks to Malian musical superstar Toumani Diabaté and his son Sidiki. Kirsty Lang watches a piece of dance theatre in an outdoor car park. She talks to Terry Gilliam about his latest opera and to Bernard Haitink one of the world’s finest conductors as he marks his 85th Birthday.