The Seven-Per-Cent Solution
- taona: 1976
- Firenena: United Kingdom, United States of America
- Genre: Mystery, Thriller
- Studio: Herbert Ross Productions, Universal Pictures, Alex Winitsky / Arlene Sellers Productions
- Keyword: based on novel or book, kidnapping, drug addiction, cocaine, sigmund freud, orient express, hijacking of train, baron, vienna, austria, hypnotism, 19th century, sherlock holmes
- tale: Herbert Ross
- Cast: Alan Arkin, Vanessa Redgrave, Robert Duvall, Nicol Williamson, Laurence Olivier, Joel Grey