Tarzan is summoned to Brazil by an old friend to stop an evil tribal cult from destroying native villages and enslaving the survivors. The Lord of the Jungle is accompanied on his quest by a pretty blonde doctor, a boy and a grizzled sea captain.
Unfortunately the movie Tarzan and the Great River is not yet available on HBO Max.
| Writing | Lewis Reed | Screenplay |
| Camera | Irving Lippman | Director of Photography |
| Writing | Edgar Rice Burroughs | Original Story |
| Editing | Edward Mann | Editor |
| Editing | Anthony Carras | Editor |
| Production | Steve Shagan | Producer |
| Writing | Bob Barbash | Screenplay |
| Editing | James Nelson | Editor |
| Directing | Robert Day | Director |
| Production | Sy Weintraub | Producer |
| Art | Herbert Smith | Art Direction |
