This Is Not a Test (1962 film)

This Is Not a Test is a lowbudget American motion picture released in 1962. Produced at the height of the Cold War, the film was one of a number of productions of the late 1950s and early 1960s based upon the premise of the outbreak of nuclear war.

This Is Not a Test is presently in the public domain in the United States, and has been released in numerous DVD formats, on its own or in collections of similar films.

Source: Wikipedia