Visionary 1920s film containing imaginative astrophysical visualizations.

http://www.archive.org/details/Heavenly1920

'American Engineer' films

incredible opening image of radio telescopes, 'listening' for space sounds:
http://www.archive.org/details/American1956

part 2:
http://www.archive.org/details/American1956_2

part 3:
http://www.archive.org/details/American1956_3

part 4:
http://www.archive.org/details/American1956_4