People who aspire to be stars in the Bollywood film industry always dream of knowing how to start a career in Bollywood. A big star like Amitabh Bachan, Aishwarya Rai or Madhubala is a dream come true. These stars have carved a niche for themselves in the film fraternity and have created a huge fan following. In fact till date these three celebrities are the icons of the film industry. They have created such a huge impact that most people dream of becoming a part of their path-breaking crew.