Area 51, what do you reckon?

[6EQUJ5]

In the notorious era of the Senator McCarthy 'trials' in the USA beginning in 1953 the government there was determined to seek out American communists and make certain that none of them could make a living. This hit the American film industry. Lots of folk were wrongly deemed communist and they came to Europe and especially the UK to work. The then actor Ronald Reagan is thought to have denounced a few people in the film industry as communist, maybe simply because he did not like them. No proof was needed, suspicion was enough to ruin a career.

Those deemed to toe the government line in America churned out stuff that the government approved of and were allowed to continue working. The government thought it possible that at any moment the Soviet Union would invade, partly by air. So you find that a lot of American science fiction films made in the 1950s by those who the government approved of ended with the dialogue "Well, we saw them off this time, but remember to watch the skies". This was really a message from the government to watch the skies for Soviet aircraft. In a lot of these science fiction films the evil aliens had (barely disguised) Soviet / communist aims.