First of all - hats off to Madhavan for bringing out the unknown facts of Mr Nambi Narayanan.. He's portrayed the role with absolute conviction and complemented well by Simran, Ravi Raghavendra, actors who played the role as his friends & ofcourse Surya for his another cute cameo..
Pros: Performance of the leading actors, cinematography, BG music, exotic locations, excellent makeup to show different time periods starting from 1960s until now..
Cons: First half of the movie talks too much technicality of the Rocket science and that too all the characters communicating in English.. This may not go well with few audiences for lack of understanding.. Regional language voice overs or Regional subtitles would have helped..
Verdict: A brutally honest biopic which even touches the dark shades of Mr Nambi Narayanan.. A little experienced director would have handled the movie to make it watchable for all the audiences and would have been a good lesson for the students!! Nevertheless kudos to Madhavan who has given his all for lifetime movie - certainly one time watchable to know the behind the scenes of ISRO!!