Beginning of the End (1957) was a Science Fiction - Horror Film directed by Bert I. Gordon and produced by Bert I. Gordon.
In an attempt to beat Paramount to the punch, MGM rushed this into production. Speed of production notwithstanding, it's a grade-A-A-bomb movie. The documentary aspects of the planning, development, and deployment of the atomic warhead are well-meshed with the standard Hollywood drama. The result is an entertaining portrayal of the nuclear-age beginning.
(Source: available at Amazon AMC Classic Movie Companion)..
The National Guardsmen wear the insignia of the U.S. 33rd Infantry Division, which is indeed the designated unit of the Illinois National Guard. The soldiers in Chicago wear the insignia of the U.S. Fifth Army, which at the time was headquartered in Chicago, where the film takes place.
200 grasshoppers were used for the film. During the filming, they began to cannibalize one another, so by the time the last shots were done, only a dozen were left.
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