Here are a few seldom seen classic sci-fi movie trailers from days long past.
The Deadly Mantis (1957)
The calving of an Arctic iceberg releases a giant praying mantis, trapped in suspended animation since prehistoric times. It first attacks military outposts to eat their occupants, then makes its way to the warmer latitudes of Washington and New York. A paleontologist works together with military units to try to kill it.
Invasian U.S.A. (1952)
Five people are sitting in a New York bar with a mysterious Mr. Ohman, when they hear the news that the godless Communists are invading the good ol' U.S. of A. The five rush off to various sections of the country to do their part to stop the invasion, when an A-bomb crashes down upon Manhattan.
The Flying Saucer (1950)
The CIA sends playboy Mike Trent to Alaska with agent Vee Langley, posing as his "nurse," to investigate flying saucer sightings. At first, installed in a hunting lodge, the two play in the wilderness. But then they sight a saucer. Investigating, our heroes clash with an inept gang of Soviet spies, also after the saucer secret.
First Spaceship On Venus (1960)
A mysterious magnetic spool found during a construction project is discovered to have originated from Venus. A rocket expedition to Venus is launched to discover the origin of the spool and the race that created it.