Movie guide
The Sign of Four (1987): movie guide
The Sign of Four (1987) is a Crime, Mystery, Thriller running about 103 minutes. It holds a TMDB score of 7.4/10 from 85 votes. Notable cast includes Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 1987-03-07
- Runtime: 103 min
- TMDB: 7.4/10
- Genres: Crime, Mystery, Thriller
Last updated: 2026-11-11 · First listed: 1987-03-07
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What is The Sign of Four about?
Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.
Cast highlights
The Sign of Four features Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 1987-03-07. Runtime: 103 minutes. TMDB score: 7.4/10 (85 votes). Genres: Crime, Mystery, Thriller. Original language: en. Status: Released.
Discover The Sign of Four on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse The Sign of Four, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is The Sign of Four?
- The Sign of Four is listed as Crime, Mystery, Thriller on TMDB.
- How long is The Sign of Four?
- The Sign of Four runs about 103 minutes.
- Who stars in The Sign of Four?
- Cast highlights include Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James.
- Does Cinema Box stream The Sign of Four?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track The Sign of Four?
- Open the The Sign of Four page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.
