1950's Sci-Fi Roundup

Here are a few trailers from some 1950s sci-fi classics. Take a look, and then I have a few questions for you.











What themes and stylistic choices do these movies appear to share with Forbidden Planet? You might wish to consider man's fear of knowledge, fear of the unknown, fear of change, fear of communism and homsexuality, pro-military attitudes, conservative attitudes, etc.

Also, how do these movies come across as different from Forbidden Planet - visually, tone, budget, acting, etc.