English: Low resolution screenshot of Pygmy drummers and dancers from the American public domain film Africa Speaks! (1930). The film was taken during a 1928 expedition. The film with some nudity was passed by the national motion picture code as ethnographic films were considered educational.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.