Filmmaker Anurag Kashyap has shot certain parts of his upcoming movie Bombay Talkies inside Pratiksha, mega star Amitabh Bachchan's house here. Apart from Kashyap, Bombay Talkies, a bouquet of four stories, has contribution by Dibakar Banerjee, Zoya Akhtar and Karan Johar. Kashyap has roped in Big B for his part of the film. Apparently it was Big B's idea to shoot certain scenes inside the house and it is for the first time that he has opened the gates for shooting of his house. The movie will release May 3 as an ode to 100 years of Indian cinema.