Factual error: One of the US Marine Corps guards in the government building (in 1941) is wearing the single rank chevron of a lance corporal. This rank was not used in the USMC between the 1930s and 1958.
Factual error: Whenever the Stars and Stripes is shown it is the modern 50-star version, not the wartime 48-star version as it should be.
Factual error: The Alamagordo Hotel should be the "Alamogordo" Hotel.