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The film's title card reads: "Edgar Rice Burroughs' Tarzan's Hidden Jungle." The film marked the motion picture debut of actor Gordon Scott (1927-2007), a former lifeguard and bodybuilder who went on to portray "Tarzan" in four more films, ending with Tarzan the Magnificent in 1960 (see below). In 1958, Scott also portrayed Tarzan in three episodes of a proposed television series that was distributed as a theatrical-length feature in Europe, but was only released on video in the U.S. under the title Tarzan and the Trappers. Tarzan's Hidden Jungle was also the first film in which Zippy the chimp portrayed "Cheta" (sometimes spelled "Cheetah") in the series. Zippy was a regular on the Howdy Doody television series. Although most of the Tarzan pictures featured the character "Jane," Tarzan's mate, she was not mentioned in Tarzan's Hidden Jungle.
The film also marked the last Tarzan picture to be released by RKO, the company that had been distributing the series since 1943. M-G-M, the studio that began a rival series in 1932, released the next two Tarzan pictures, Tarzan and the Lost City and Tarzan's Fight for Life ( entries). According to a Daily Variety news item and Hollywood Reporter production charts, location shooting for Tarzan's Hidden Jungle took place at the World Animal Jungle Compound in Thousand Oaks, CA. For more information about the series, see the entries above for Tarzan, the Ape Man and Tarzan Triumphs and consult the Series Index.