The chain of ownership of RKO properties after its demise in 1959 is unclear, however, whomever owned distribution rights to RKO properties in 1975 is presumed to have been the author of all press-materials promoting the screening of King Kong in theatres that year.
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 (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description=Publicity photo of American actress Fay Wray (top right) promoting the 1933 feature film ''King Kong''. |Source=[http://imgkid.com/king-kong-vs-t-rex-1933.shtml] |Date=Date stamp...