Abhishek Bachchan has begun shooting for his next film, ‘The Big Bull’, whose announcement he had come up with on social media. The film will reportedly be based on a financial theme, featuring true events that took place in the 1990s. ‘The Big Bull’ is directed by Kookie Gulati while Ajay Devgn is backing the film as a producer. Buzz suggests that Ileana D’Cruz maybe roped in to play the leading lady opposite Abhishek, but there has been no confirmation on that front so far. Abhishek and Ajay have reunited for a project after seven years, their last collaboration being 2012 release ‘Bol Bachchan’. This time though, not both seem to be working in this project as actors.