Often, the Indianism ‘filmi’ is used to mean the very opposite of class. Its shades of meaning include an artificiality, a certain amount of exaggeration, of façade. Class, to survive in this hurly-burly, must be of a very high order indeed. So, to help us define class, we went to someone who is very much a part of the film world, but has always been, quite simply, classy: Shabana Azmi, award-winning actor and activist