Much of our history was unknown in 1975 when Freedom At Midnight by Dominique Lapierre and Larry Collins, the bestseller documenting the backstage events that led to the bloody Partition of India, was first published. In recent years, there has been such a glut of printed and visual information on what happened in 1947 that Indians are familiar with most of the Nehru-Gandhi-Patel-Jinnah parleys which director Nikkhil Advani sets out to preserve on film.