Tarzan of the Apes is a 1918 silent movie. It was directed by Scott Sidney. It stars Elmo Lincoln and Enid Markey. The movie was the first Tarzan movie ever made. It is based on Edgar Rice Burroughs's book "Tarzan of the Apes". The movie adapts only the first part of the book. The rest of the book became the sequel, "The Romance of Tarzan". The movie is considered the most faithful to the book of all the movie adaptations. 