The Big Bull is a 2021 Indian Hindi-language financial thriller film directed and co-written by Kookie Gulati and produced by Ajay Devgn, Anand Pandit, Vikrant Sharma and Kumar Mangat Pathak. The storyline of the film is based on the life of Harshad Mehta, a stockbroker, involved in financial crimes over a period of 10 years, from 1980 to 1990. Abhishek Bachchan portrays the titular protagonist, co-starring with Nikita Dutta, Ileana D'Cruz, Sohum Shah, Ram Kapoor and Saurabh Shukla. Principal photography of the film begun on 16 September 2019.
Due to the COVID-19 pandemic, the film was not able to be released theatrically. It is available for streaming worldwide from 8 April 2021 on the Indian streaming platform Disney+Hotstar.
The Big Bull’ follows the life and times of Harshad Mehta – a smalltime stockbroker, who manipulates the loopholes in the country's archaic banking system to create a massive bull run on the stock exchange. But at a time when the Indian economy was taking its big leap towards liberlisation, it was only a matter of time before Harshad Mehta's dream run, ended in a nightmare.
In 2018, it was reported that Ajay Devgn will produce the film with Abhishek Bachchan playing the lead role. The film is directed by Kookie Gulati and shows the financial crimes and life of Harshad Mehta. Nikita Dutta and Ileana D'Cruz were brought in to play supporting roles.
The shooting commenced on 16 September 2019. Many shots of the movie has been filmed in Gautam Buddha University.