Bollywood cinema: 10 lesser-known facts
4 May 2013 Last updated at 18:05 BST
Indian cinema began 100 years ago - although the term 'Bollywood' was only coined many years later.
Top Bollywood film makers Anurag Kashyap, Karan Johar, Dibakar Banerjee and Zoya Akhtar have made a film, Bombay Talkies, which pays homage to the centenary of Indian cinema.
They tell the BBC's Yogita Limaye their views on Bollywood's past, present and future.