Ravi Chopra has been toying with the idea of making 'Mahabharat' epic into a film. Now he is busy wrapping up the post-production work of 'Baabul'. The buzz is he wants to cast Amitabh Bachchan as Bhisma and Rani Mukherjee as Draupadi. He says, "I will not disclose my cast yet. It's too early to talk about that. A film demands more glamour and our budget is Rs 150 crore, for part one and two. We are going to get a special effects team from Hollywood and it will have an international look, so that we can market it abroad." This 6-hour marathon is expected to be the longest in the history of Bollywood. It will release in 2 parts - part I on one Friday and the part II on the following Friday.