Note that the uploaded photo is a better, larger copy of the one scanned from the magazine.
A search was done for renewal in periodicals for the years 1959 and 1960. There were no listings for the title "Screenland". There's no evidence of continuing copyright on this magazine.
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.