WATCH THE SKIES 2005 (MGM)

This is a very well made documentary on 50's sci-fi films and their effect on the culture of the time.
Great scenes from films such as Day The Earth Stood Still, Them, War Of The Worlds and much more are shown while such luminaries as Steven Speilberg and George Lucas talk about them. James Cameron does as well, but his comments make absolutely no sense to me at all.
This is well worth your time if you can find it. It was included in the Forbidden Planet 50th Anniversary set a few years ago.