Cast & Crew
Mary and Bobby Trevor are castaways befriended by Tarzan. When Lord arrives, looking for the family heir, Black John tries to fill that role and marry Mary in England. Tarzan shows up and marries her instead.
The original star was to have been Joe Bonomo, promoted by the studio as "the greatest of all Tarzans." Near the end of work on another picture, Perils of the Wild (1925), Bonono fractured his left leg and injured his sacro-iliac. 'Merrill, Frank' , who had doubled for Elmo Lincoln in Perils of the Jungle (1927) was offered the job and began work the next day.
When a friend of Merrill's learned of a physical culture contest in England he entered Merrill's photo without his knowledge. Merrill was voted second runner-up for "World's Most Perfectly Developed Man" and the publicity from this added to attendance at the movie. The irony is that Merrill's body was more thoroughly covered than any other Tarzan.