The IMDB says that this Jimmy Stewart movie was banned in fascist states because of fears that it showed democracy works
The film was banned in Nazi Germany, Fascist Italy, Soviet Russia and
... [DOC] [TLE] Mr. Smith Goes to Washington - Wikipedia [PAR] Mr. Smith Goes to Washington is a 1939 American political comedy-drama film, 
starring James Stewart and Jean Arthur, about a newly appointed United States 
.... Because Cooper was unavailable, Capra then "saw it immediately as a .... to 
show Mr. Smith Goes to Washington as the last movie before the ban went into 
effect.