Rocketry: The Nambi Effect is a 2022 Indian biographical drama film written, produced, and directed by R. Madhavan in his directorial debut. The film is based on the life of Nambi Narayanan, played by Madhavan, a scientist at the Indian Space Research Organisation (ISRO) who was accused in an espionage case and later exonerated. The story spans across Narayanan's days as a graduate student at Princeton University, before exploring his work as a scientist and the false espionage charges placed upon him. Simran plays the female lead.

After its official announcement in October 2018, principal photography took place across several countries, including India, Russia, and France. The cinematography and editing were handled by Sirsha Ray and Bijith Bala, respectively, while the original score was composed by Sam C. S. Rocketry was filmed simultaneously in Tamil, Hindi, and English.

The English version of Rocketry premiered at the 2022 Cannes Film Festival on 19 May and the Tamil and Hindi versions had its theatrical release worldwide on 1 July 2022. The film opened to mostly positive reviews from critics, who praised Madhavan's performance, his screenplay and his noble intention to make the film. The film garnered recognition with several awards and honors, including winning the National Film Award for Best Feature Film.