Caitlin Moran, Maureen Lipman and Harry Shearer, Chelsea Handler

Maureen Lipman and Harry Shearer talk to John in the hours leading up to curtain call of the West End transfer of their critically acclaimed play, Daytona; Caitlin Moran discusses her debut novel and explains why it's the hardest thing she's ever done; American talk show host, comedian, and author Chelsea Handler discusses her stand-up tour, why she's been insulting people all her life, and whether her confessional style is all true; and technology journalist Aleks Krotoski reviews Digital Revolution, a new exhibition at the Barbican Centre which explores the evolution of digital art from the early video games of the 1970s to the visual effects used in the film Gravity.