Public Domain Movies

It's Your America Part I (1945)
Running Time: 16 mins Black & White

The U.S. War Department described this film in the following words: "An American soldier, during his combat career, realizes the greatness of his country and determines to assume his share of the responsibilities of good citizenship upon his return to civilian life." Contains "seized enemy material.

Wonderland of California (1930)
Running Time: 6 mins Black & White

Some unrelated scenes combined into a short film, probably to demonstrate the "Cinecolor" process. One scene depicts "The Marx Brothers" during shooting of what seems to be "Animal crackers". This title isn't to be found in "Catalog of Copyright Entries - Motion Pictures 1912-1939, LOC, 1951", so I'm confident it is Public Domain.