A beautiful woman hires an intrepid adventurer to help find her father, who has disappeared in the jungle while searching for a rare and priceless butterfly. Along the way they run into cannibals, a race of Amazon warriors and all the usual attractions one would expect to find in a lost jungle.
Unfortunately the movie Gwendoline is not yet available on HBO Max.
| Sound | Claude Plouganou | Sound Effects |
| Directing | Just Jaeckin | Director |
| Production | Serge Laski | Producer |
| Writing | Just Jaeckin | Screenplay |
| Production | Jean-Claude Fleury | Executive Producer |
| Sound | Pierre Bachelet | Original Music Composer |
| Camera | André Domage | Director of Photography |
| Editing | Michèle Boëhm | Editor |
| Production | Barbara Claman | Casting |
| Production | Priscilla Droulers | Casting |
| Production | Mamade | Casting |
| Writing | John Willie | Comic Book |
