Atom Bomb (1947) is a Bollywood action-adventure film directed by Homi Wadia and produced under the Basant Pictures banner. Starring John Cawas and Sona Chatterjee in lead roles, the film features a supporting cast that includes Dalpat, Sikandar, Aziz, Vasant Pawar, Radha, Vijaya, and Phat Phati.

The story revolves around Professor Leelaram (Sikandar), who invents a powerful elixir that grants extraordinary abilities. Dr. Khudiram (Dalpat), the film’s antagonist, plots to seize this formula and kidnaps the professor’s daughter, Leela (Sona Chatterjee), to forcefully obtain the secret. The hero, Atom Bomb (John Cawas), embarks on a daring mission to rescue Leela and stop Dr. Khudiram’s sinister plans.

The film’s music, composed by A. Karim, features lyrics by I.C. Kapoor. Released in 1947, Atom Bomb is a classic of Bollywood’s stunt and action genre, highlighting Homi Wadia’s directorial expertise and John Cawas’s remarkable athleticism, cementing his legacy as an action star of Indian cinema.