The Tin Drum
This 1979 German drama was banned in Canada and Oklahoma for including a pedophilic scene in which a young boy and an older woman engage in sexual conduct. Despite this scene being universally regarded as morally reprehensive, the Oklahoma board overturned their ban and helped fund a documentary about the issues behind obscenity in this film.
Superstar: The Karen Carpenter Story
Legendary director Todd Haynes wrote, produced and directed this 43-minute-long documentary about Karen Carpenter and her lifelong struggle with anorexia. This movie came after Carpenter's death. When Richard Carpenter, Karen Carpenter's father, viewed the film, he objected to Haynes' description of Karen's family life and hired a team of lawyers to get the movie banned. Carpenter's lawyers were able to get the film blocked via copyright infringement, and the movie is still banned today.