Hot answers tagged black-and-white
Despite your doubts, Fahrenheit 451 did seem to fit the bill for me, as I recalled a similar scene. I did some digging around and found this site, which shows the scene as you describe it above (or very closely at least, complete with coat hooks and tables recitation). Hope this helps.
Somtimes filmmakers use black & white for showing the darker aspects of story. For example in the 1998 film American History X, the parts of the movie where Edward Norton's character is a racist, are shown in Black & White, whereas the part of the movie where Edward Norton is no longer a racist and is seen repenting are shot in color. Take a look ...
I don't remember "feeding centers", but the dome and the light plane and the aliens bring to mind The Slime People (1963). Does this trailer look familiar? From the Wikipedia entry: The film concerns a race of subterranean reptile-men (dubbed "slime people" due to their slime-covered skin) who create a wall of "solidified fog" around Los Angeles ...
just in case someone else was actually following this, i found it! :) http://www.youtube.com/watch?v=xP0R2bX4xUU you can see its actually way more recent (80's) then i estimated, but the style is quite unique with he collage-like scenes in between. anyway, i am really happy i found it and thanks for your help.
Only top voted, non community-wiki answers of a minimum length are eligible