Documentary filmmaker Louis Theroux discusses his new film My Scientology Movie, Jimmy Savile, and his particular documentary-making style.

To celebrate National Poetry Day, PJ Harvey, Daljit Nagra and Holly McNish will each be introducing and reading a new poem each for Front Row.

Sara Lloyd from the Welsh-language National Theatre Wales, Theatr Genedlaethol Cymru, and Thomas Cloarec from Breton company Teatr Piba discuss their collaboration on a new play. Merch yr Eog (The Salmon's Daughter) is performed in Welsh, Breton, French and Creole and translated for the audience through a smartphone app.

Presenter Samira Ahmed