Tarzan's Greatest Adventure is a 1959 American Eastmancolor adventure film directed by John Guillermin, produced by Sy Weintraub and Harvey Hayutin, and written by Les Crutchfield, based on the character created by Edgar Rice Burroughs as the twenty-second film of the Tarzan film series that began with 1932's Tarzan the Ape Man.

With a strong supporting cast that included Anthony Quayle and Sean Connery, and a focus on action and suspense, the film won critical praise as a Tarzan film that appealed to adults as well as children.

At one point, Tarzan briefly romances a female character, suggesting that he is a loner, not a family man.

He departs his treehouse and arrives at Mantu, where a funeral is being held for the fallen villagers.

Tarzan then embarks by canoe to catch an old nemesis named Slade and his gang of raiders.

However, the aircraft's engine stalls, and it crashes, depositing an American ex-fashion model, Angie, into the river.

Eventually, one of them leaves the boat and is later stuck in quicksand and drowns; another dies when Tarzan, who has now caught up with the raiders, nails him with bow and arrow.

There is no honor among these thieves, as Kreiger demonstrates when he tries to kill Slade after they reach the mine.

High atop a river bluff, Slade fires rifle shots at Tarzan, who reaches him despite this.

In April 1958 Lesser sold his company, including the rights to the Tarzan films, to Sy Weintraub for a reported $3.5 million.

In July 1958 he announced he would not return as Tarzan, refusing to sign an exclusive contract.

[9] In November Hedda Hopper reported that Weintraub, unable to find a new Tarzan, has signed a seven year deal with Scott to play the role.

"[13] He also said "Lesser saw Tarzan as part of a family unit, but if you read Burroughs' books, the bastard [Greystoke] really knew what to do.

[1] John Guillermin later said "For a short schedule, fairly low-budget picture, the whole affair really got me quite excited.