Shah Rukh Khans sci fi magnum opus RA.One promises to become bigger in the coming days. The opening day of the movie was the second highest ever for a Hindi film, grossing Rs. 26.5 crore with a net of Rs. 18.5 crore.The second day (October 27) collections, were even more impressive with the film raking in Rs. 36 crore gross with a net of Rs. 25.10 crore. The total so far is whopping Rs. 62.50 crore in the first two days of its release.Ra.One, released on Diwali with Rs. 150 crore budget, on 3100 screens in India, 500 being in 3D format and 1000 screens overseas has got mixed reviews. While some analysts said it is a a big dud, others gave it a 3 star rating. But it is the massive marketing campaign adopted by promoters, that has been largely responsible for delivering such a blockbuster film.Though the movie is picking up significantly now, analysts are concerned about the returns that distributor Eros will rake in during the entire run of the movie.But Eros is still hopeful. Kamal Jain, CFO, Eros International, said: We have recovered most of our investments before the release of the movie through pre licensing and cable and satellite rights as well as through marketing.It was set to be a blockbuster Diwali for box office as they pinned their hopes on Shah Rukhs mag