The Great Dictator
It should not come as a surprise based on the time period of this movie's release that it wasn't received well in Germany. Charlie Chaplin wrote, directed, and starred in The Great Dictator to provide satyrical education about the dangers of fascism. Naturally, the movie was banned in Germany, and it was banned in many Latin American countries that were occupied by Nazi sympathizers after the war had ended.
Amazing Grace
This movie follows two night's worth of secret recordings from some of Aretha Franklin's Amazing Grace album, recorded in LA's New Temple Missionary Baptist Church. These recordings were harnessed by Sydney Pollack, who has since passed. Aretha Franklin's lawyers have stopped every attempt to distribute this film because Pollack technically owns the rights to it, despite being dead.