With Mark Lawson. A major Damien Hirst retrospective exhibition opens this week at Tate Modern. Damien Hirst discusses his success and the reaction he gets from cab-drivers, and critic Jackie Wullschlager gives her verdict. In his new film This Must Be The Place, Sean Penn is almost unrecognisable as Cheyenne, a fifty year-old Goth and former rock star, who sets off on a journey of discovery after his father's death. Jenny McCartney reviews. Michael Grade has held top positions at the BBC, ITV and Channel 4. He's now presenting a Radio 2 series examining Britain's television industry. The former BBC Chairman discusses commissioning Dennis Potter's The Singing Detective in the BBC toilets, being asked to lower ratings at ITV, and the moment he thought that Bob Geldof had ended his career. Producer Rebecca Nicholson.