Wow. Thanks Memepool for leading me to The Internet Archive. This site has an archive of pre-1964 governmental and educational movies, including such gems as:

All Out for Victory??ca. 1943
Producer: Unknown
Sponsor: Firestone Tire and Rubber Company
Contributions of handicapped and disabled workers to World War II industrial production.

Always Tomorrow (Part I)??1941
Producer: Handy (Jam) Organization
Sponsor: Coca-Cola Company
Dramatized history of the Coca-Cola company and some of the people who participated in its origin and growth. Made in the style of a feature film.

America Goes Over (Part I)??1918
Producer: U.S. Army, Signal Corps
Sponsor: U.S. Army, Signal Corps
Government-produced historical record of major World War I battles.

and the most interesting sounding one in the A’s:

About Fallout (1963)??1963
Producer: U.S. Department of Defense, Office of Civil Defense
Sponsor: U.S. Department of Defense, Office of Civil Defense
Optimistic vision of fallout and civil defense countermeasures.

Damn, I can’t wait to get broadband again (the movies are all 200-500Mb MPEG-2 files).