Banerjee has directed one of the four short films in "Bombay Talkies'.
Talking about it, Banerjee told IANS: "He (Ranbir) is totally associated. He is a shadow of god associated with the film. He is there in every frame. He is there as the ultimate hero against this average common man. Without Ranbir this could not have happened."
Banerjee's film features Nawazuddin Siddiqui in the lead role. The director said that he had been wanting to work with Nawazuddin since a long time.
"I have been wanting to work with him since 'Black Friday;. It was a lovely experience. It was a spiritual experience for both of us," he said.
Talking about the Aamir Khan-starrer promotional song for "Bombay Talkies", the director said it will be a huge boost for the movie, which is primarily a celebration of Indian cinema's centenary.
"He (Aamir) is not there in my film or any of other the other films. He is there in the promotional song. He has been such an enthusiastic supporter of the project. His presence will be lovely for this film," he said.
Other directors who have contributed to "Bombay Talkies" are Anurag Kashyap, Zoya Akhtar and Karan Johar. The film releases May 3.