| Title | The Ninth Gate |
| Release | 1999 |
| Genre | Mystery, thriller, supernatural horror |
| Director | Roman Polanski |
| Screenplay | Roman Polanski, John Brownjohn, Enrique Urbizu |
| Based on | The Club Dumas (1993) by Arturo Pérez-Reverte |
| Main Actor | Johnny Depp as Dean Corso |
| Other Cast | Frank Langella, Emmanuelle Seigner, Lena Olin, James Russo |
| Protagonist | Dean Corso, a rare-book dealer and expert in antiquarian books |
| Central Object | The Nine Gates of the Kingdom of Shadows, an allegedly satanic book |
| Main Premise | Corso is hired to authenticate a mysterious occult book and locate surviving copies of it. |
| Themes | Occultism, greed, knowledge, temptation, immortality, good vs. evil |
| Setting | Primarily Europe, including New York, Paris, Toledo, Sintra and other locations |
| Music | Wojciech Kilar |
| Runtime | Approximately 133 minutes |
| Production | Produced by Artisan Entertainment and other international partners |
| Style | Slow-burn mystery with gothic and occult imagery |
| Key Motif | Engravings in the book may hold clues to a supernatural ritual to summon the devil |
