Rana Mitter discusses a new model for understanding the brain, with researcher and writer Norman Doidge. Polish film director Krzysztof Zanussi talks about his latest film - Foreign Body - and a new touring festival of classic Polish cinema selected by Martin Scorsese. Activist Srdja Popovic is a proponent of non-violent protest and was a founder of the student movement Otpor! which helped to bring about the downfall of Slobodan Milosevic. He and writer Kate Maltby talk about the strengths and weaknesses of peaceful resistance.