Watch The Spirit of '43 (1943)
Source And Credit
This video is hosted by and streams from Internet Archive, credited to Walt Disney. License stated there, Public Domain. Every right stays with its owner. Request removal.
About This Film
Fell in the public domain because it was made for the American government and all films made for or by the government of the U.S.A. are in the public domain. From IMDB: Donald Duck deals with income taxes and their benefit to the American war effort in this inspirational documentary short animated film.