The World's End; The Color Purple musical; David Sedaris; Badults

With Mark Lawson.The World's End is a new comedy film from Simon Pegg, Nick Frost and Edgar Wright, completing a trilogy which began with Shaun of the Dead and continued with Hot Fuzz. Adam Smith reviews.Pulitzer Prize and Tony Award-winning dramatist Marsha Norman discusses how she adapted Alice Walker's novel The Color Purple as a musical for the stage. The show is about to receive its British premiere. Marsha Norman also reflects on how she teaches the art of writing for musicals.Badults is a new TV comedy which follows the exploits of three childhood friends who made a pact to live together when they grew up, but find themselves struggling to adapt to adult life. The show is written by and stars Ben Clark, Matthew Crosby and Tom Parry, also known as the comedy troupe Pappy's. They discuss their move from the live comedy circuit to the small screen.In tonight's Cultural Exchange, American writer David Sedaris chooses the TV programme Ru Paul's Drag Race.Producer Dymphna Flynn.