Thunder Beach

Atomic Power! is an American short documentary film produced by The March of Time and released to theaters August 9, 1946, one year after the end of World War II. It is a recreation of the making of the atomic bomb leading up to the Trinity test. It was nominated for an Academy Award for Best Documentary Short.

Short documentary film in the newsreel series 'The March of Time'.

A young actress has retired from films to marry the son of a prominent and rich politician in New York City. The father objects strongly to the marriage. The actress is being blackmailed by a second-rate artist who has stolen some letters from her that could be misconstrued. During the payoff, she is knocked unconscious, and awakens to find herself involved in a murder and the police have her marked as the number-one suspect.

Using documentary footage, re-enactments, newsreels, diagrams and animation, narrator Westbrook Van Voorhis details how to react to news of an atomic explosion.