Iran's new president Hassan Rouhani has been centre of attention at the UN this week. He's promising a new approach to talks with the West over his country's nuclear programme.

He is certainly a change from his abrasive anti-Western predecessor. Rouhani studied in Britain, loves Bogart films and Thomas Hardy novels and is fond of designer clerical robes.

So, Mary Ann Sieghart asks, is all that merely a matter of presentation? Or is he a completely new kind of Iranian leader?

Producer: Heba Ayoub