Brave hero Parsifal, orphan and raised among wolves, must recover the Holy Grail from the hands of the evil wizard Klingsor, a Barbarian chieftain who killed his father, and thus save the wounded Amfortas, ruler of the Grail kingdom. Kundria, a beautiful and seductive houri, and even the Seven Deadly Sins will try to stop Parsifal and his noble quest.
Unfortunately the movie The Evil Forest is not yet available on HBO Max.
| Writing | Richard Wagner | Original Story |
| Writing | Carlos Serrano de Osma | Screenplay |
| Writing | José Antonio Pérez Torreblanca | Dialogue |
| Costume & Make-Up | Manuel Muntañola | Costume Design |
| Art | José Caballero | Art Designer |
| Art | Daniel Mangrané | Art Direction |
| Sound | Richard Wagner | Original Music Composer |
| Sound | Ricard Lamote de Grignon | Conductor |
| Sound | Ricard Lamote de Grignon | Music Arranger |
| Camera | Mario Pacheco | Camera Operator |
| Editing | Antonio Cánovas | Editor |
| Camera | Cecilio Paniagua | Director of Photography |
| Production | Jesús María López-Patiño | Production Director |
| Directing | Carlos Serrano de Osma | Co-Director |
| Production | Daniel Mangrané | Producer |
| Writing | Daniel Mangrané | Screenplay |
| Directing | Daniel Mangrané | Director |
