The Sign of Four
- Godina: 1983
- Country: United Kingdom
- Žanr: Adventure, Crime, Mystery, TV Movie
- Studio: Granada Television, Mapleton Films
- Ključna riječ: treasure, river, doctor, pearl, sherlock holmes
- Direktor: Desmond Davis
- Uloge: Ian Richardson, David Healy, Thorley Walters, Michael O'Hagan, Cherie Lunghi, Joe Melia