- Portrayed her own grandmother in Chaplin (1992)
- Daughter of Charles Chaplin and Oona Chaplin.
- Has had long time relationship with Spanish director Carlos Saura
- Granddaughter of playwright Eugene O'Neill (1888-1965) and the singer Charles Chaplin Sr. (1864-1901). Oona Chaplin (1926-1991), Eugene O'Neill's daughter, was married to Charlie Chaplin from 1943 until his death in 1977.
- Half-sister of Sydney Chaplin and Charles Chaplin Jr.
- Sister of Christopher Chaplin, Eugene Chaplin, Michael Chaplin, Josephine Chaplin, and Victoria Chaplin.
- Festival tribute at the Créteil International Women's Film Festival, France. 
- Aunt of Kiera Chaplin, Carmen Chaplin, Dolores Chaplin and 'James Thierree'.
- Great-granddaughter of James O'Neill.
- Sister-in-law of Jean-Baptiste Thiérrée.
- Sings the duet "Les aimants" written by Chet and composed by Jérôme Rebotier on Chet's album "L'amour à la Française".
- Speaks fluent Spanish
- While filming her nude scened in Welcome to L.A. (1976), one of the first experiments with digital photography involved positioning Chaplin's head on the body of a former Penthouse Pet. This became necessary to avoid embarrassing her father ('Charlie Chaplin' ) prior to his death. Although she was anxious to perform in the nude, director Alan Rudolph feared the loss of financing if Lion's Gate Films and producer Robert Altman fell into disfavor with the World Famous Film Icon. Ultimately, Geraldine Chaplin performed the scene in a nude body stocking and it took almost an entire month, using antiquated production equipment, to digitally transfer the nude body to the head of Chaplin. In turn, this put the production way over budget and as a result, John Wayne was replaced by Denver Pyle as the father of Keith Carradine.
- Member of the jury at the Cannes Film Festival in 1982
- Has a son with Carlos Saura
- 1978/Winner Best Actress Award, Paris Film Festival, Miami Film Festival for Robert Altman's "Remember My Name".
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