Actor Daniel Radcliffe discusses his newest stage role and his career choices post-Harry Potter. Playwright Conor McPherson talks to Mark Lawson about the experiences that have informed his writing. Lenny Henry discusses his return to the stage to star in the Pulitzer prize-winning play Fences by American playwright August Wilson. Director Tina Gharavi on her debut film I Am Nasrine, which follows a teenage refugee from Iran. Neil Hannon and musician Thomas Walsh discuss their second cricket-inspired album, Sticky Wickets. Artist Rachel Whiteread makes her selection for the Cultural Exchange - a painting by Bridget Riley, which she kept as a postcard. David Edgar's new play If Only imagines what will happen to the coalition in 2014 - he tells Mark Lawson what will happen to his play if life mirrors art.