Screenwriter Clair Huffaker brings Edgar Rice Burroughs' titular creation into the groovy 1960s, with mediocre results. Tarzan has been transformed into a jungle super-spy--which is rather like having 007 in a loin-cloth! Worse ideas have surely been filmed, and ex-football player Mike Henry does quite well in his debut as the infamous Ape Man, but the nondescript plot, cardboard villains and weak supporting players do this entry in. Huffaker pairs Tarzan up with a chimp, a squinting kid, a pretty lady and a very sleepy lion, none of whom are able to energize the plot involving international crime, exploding wristwatches, and a mythical lost city. Lethargic and weary; long-time "Tarzan" aficionados were not enthused, yet the new formula was kept (as was Henry) for two more pictures. *1/2 from ****