The much awaited biopic on former ISRO scientist Nambi Narayanan is due to hit the screens. In a video posted on Instagram, actor R Madhavan, who plays the role of the scientist in the movie, officially announced the release date of the teaser, which will be on October 31. In a rather intriguing video shot in vector, Madhavan introduces us to the story of the scientist with the help of the proverbial three wise monkeys. He begins by saying that not knowing some stories is the same as not caring about your own country.