- HD 1080
- Runtime: 99m.
- Status: Released
- 0
- Languages: en
- Country: United Kingdom
- Director: Michael Apted
- Stars: Dustin Hoffman, Vanessa Redgrave, Timothy Dalton, Helen Morse, Celia Gregory
- keywords: journalist, husband wife relationship, england, historical figure, disappearance, spa, mystery writer, 1920s, crime fiction writer, female writer
- Production_studio: Sweetwall, First Artists, Warner Bros. Pictures
- Slogan: On December 4th, 1926, Agatha Christie, the world's most famous mystery writer, disappeared. What may have happened during the next eleven days is far more suspenseful than anything she ever wrote.
- The Agatha is featured in the top rankings of 1979
- #77 in Top Drama Movies of 1979
- #14 in Top Thriller Movies of 1979
- #9 in Top Mystery Movies of 1979
England, 1926. An American journalist looks for mystery writer Agatha Christie when she suddenly disappears without explanation, leaving no trace.