Bachchan, 71, alongwith the South legend launched the trailer here late last night at a suburban multiplex.
Directed by Rajinikanth's daughter Soundarya, Kochadaiiyaan is a hi-tech 3D film with photo-realistic motion capture technology also known as performance capturing technology, a first of this kind being produced in India.
Hollywood blockbuster films like 'Avatar', 'The Adventures of Tintin' have been produced with same performance capturing technology.
"I am finding it difficult to find words to what we have witnessed now. Firstly, I will like to acknowledge that it is a woman who has directed this kind of a movie. With the kind of struggle our nation is going through (regards to women) it is commendable that Soundarya has done this and showed that women in India are capable to do best," Bachchan told reporters here.
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The film stars Rajinikanth in a triple role and Bollywood's leading actress Deepika Padukone among a host of other acclaimed actors.
Besides Bachchan, other A-listers including wife Jaya, daughter-in-law Aishwarya, filmmakers Shekar Kapur, R Balki, Subhash Ghai, Ramesh Sippy, Kajol, Anupam Kher and others were present at the trailer launch.
"I saw the glimpse of the trailer and told Rajinikanth how he should be proud of you (Soundarya) for what you have done and achieved. It is a game-changer for Indian cinema. We are proud of you," Shekar Kapur said.