Rocketry: The Nambi Effect, directed by R. Madhavan, is a sort of biography on Narayanan that debuted at the Cannes Film Festival's Marche du Film in May and is currently playing in theatres. But sadly, the 157-minute screenplay is entirely unnecessary. The first part of the film, which is scripted by Madhavan (who portrays Nambi Narayanan), feels like a physics lesson since there are so many obscure and tedious scientific terms used. It is scarcely cinematic and incredibly verbose.