He says he feels alive thanks to filmmaking - and also the danger of continuing to work in the Islamic Republic. This is the dissident Iranian filmmaker Jafar Panahi who is back at the Cannes Film Festival after an abscence of 15 years. Imprisoned twice and until recently subjected to a travel ban, Panahi saying he is not afraid of the consequences of showing his film "It Was Just an Accident" in Cannes. Carys Garland reports.