Even before Drona nears completion; a series on the film is already in the pipeline. Abhishek Bachchan has been in discussion with the producers and director of the film on how the first part of the series will end, giving enough scope for the director to plan a sequel. According to an industry source, "Abhishek Bachchan is involved with the film not only as an actor but he is also giving creative inputs on the story of the film. He has already made plans on making a series on Drona, just like Krrish."

Abhishek Bachchan will be devoting the next three months (September to November) shooting for the film. Said the source, "He has put everything else on hold and will only be concentrating on Drona. The shooting of Drona was stalled due to untimely rains in Rajasthan and the Gujjar riots which resulted in cancellation of trains through the state. Besides, Abhishek Bachchan took a break from the shootings a few weeks before and after his marriage. They might have to reshoot some portions of the film."

Drona is a very special film for the Bachchans. Amitabh Bachchan too has been taking keen interest on the making of the film. "They have seen the portion that has been shot, which was not very impressive. They want the best creative people to be involved in the film's special effects. They want it to look even bigger and better than Krrish and Dhoom 2," our source said.

Hollywood's best special effects man, Charles Darby, has been called on board to help Drona look even better than Krrish and Dhoom 2 . Informs a company source, "Eros International has signed Charles Darby, the man who has done the special effects of all top Hollywood films including the Harry Potter series.

Darby has an expertise of also being the production controller on several Hollywood films, so they have the best with them now." Charles Darby, known for his matte painting in digital format, has provided special effects for Titanic, Fifth Element, Minority Report and Crouching Tiger Hidden Dragon.

Drona will not only be competing with Dhoom 2 and Krrish in terms of special effects, but also is likely to beat them with a budget of not less than Rs 55 crore.