[5] Lex Barker’s third outing in the loincloth has him caught up with gunrunners, warring tribes, and even a man-eating jungle plant. The script is more scatter-shot than usual, but Barker seems more comfortable in the role than before, playing Tarzan as less brutish and more talkative (though still a stranger to most pronouns and articles). Virginia Huston makes a terrible Jane — you don’t …