A source reveals, "After the success of the sequels, they decided to add some more masala to the film. Director Anees Bazmee has scripted a very strong character which is the fourth character and of a lot of importance to the story."
The source continues, "This third sequel will have more twists and turns and one had to play more with the characters. Mr. Bachchan is a wonderful actor and it was very long since one saw him in a comedy role. He will very beautifully essay the role."
Director Anees Bazmee says, "We are still in the scripting stage. The script is being written keeping Amitabh Bachchan in mind. I still have to narrate the script to him. We both are keen on working with each other. Things yet have to be finalised."
The movie will be produced by Firoz Nadiadwala and will be directed by Anees Bazmee. The movie will go on floors in March 2011 with Katrina in the lead. The movie will be called Hera Pheri 4.