Trivia: The infant playing Connie and Carlo's baby son Michael Francis Rizzi who Kay holds during the christening scene is Sofia Coppola, Francis Ford Coppola's daughter, who was born in May 1971. Sofia later had a prominent role in Part III as Michael's daughter, Mary. Other than the main characters, Sofia is the only actor to have appeared in all three films. In The Godfather II, she can be briefly seen as an immigrant girl on the ship that brings Vito Corleone to Ellis Island.
Trivia: At the end of the film, the police officer advising Beatty and Voight to go away and not to come back is James Dickey, the screenwriter and author of the book the film is based on.
Trivia: During principal photography, Blythe Danner was pregnant with Gwyneth Paltrow. Paltrow later played Martha Jefferson's daughter Patsy in Jefferson in Paris.
Trivia: The scene where Belle (Shelly Winters) dives into the water was actually rehearsed by having her jump into the water. She decided to dive in while filming the scene and that take was used.
Trivia: Marlon Brando ad-libbed most of his dialogue for the movie.
Trivia: Mary Ure plays Katherine, the mother of Marguerite (Sondra Locke). In real life, Ure (born 1933) was only eleven years older than Locke (born 1944).
Trivia: During the filming of one scene in a native village, Klaus Kinski hit one of the extras over the head with his sword, almost killing him. The man survived because he had a helmet on.
Trivia: The space ship "Valley Forge" from Silent Running was re-used in one episode of the television series "Battlestar Galactica" (1978-1979). It was called the "agro-ship," used to grow food for the colonists.
Trivia: "Cabaret" holds the record for most Academy Awards won by a film which did not win the Best Picture Award. The film won eight in total.
Trivia: Sissy Spacek as Poppy never once wears the outfit she's shown wearing on the DVD box art. This is either a publicity still or it came from another movie of hers, The Badlands.
Trivia: Anne Bancroft, who plays Lady Jennie Churchill, was only 10 years older than Simon Ward, who plays her son.
Trivia: Doris Roberts plays Charles Grodin's mother in the film, even though in real life she's only five years older than him.