'Joy at the death of the dictator and sadness that the war has begun': Iranian democracy activist speaks to CNN from Tehran

<p>As the future of Iran hangs in the balance, Christiane Amanpour speaks to Iranian democracy activist Mehdi Mahmoudian from Tehran. They discuss his experiences of imprisonment by the Islamic regime and the Oscar-nominated film “It Was Just an Accident” which he co-wrote with director Jafar Panahi.</p>