Trivia: When the film was shown during the 2003 Baseball Hall of Fame ceremony, Susan Sarandon and her partner Tim Robbins were not invited because of the controversy surrounding their anti-war views on Iraq.
Trivia: In the 40th anniversary re-mastered edition they have used Audrey Hepburn's original singing track for the "Wouldn't it be lovely" song.
Trivia: When the alien's hand comes out of the coal grate for Morgan, if you look closely you will see that the hand was already through the grate and the alien was using its colour changing abilities to hide. So if you look very closely you will that that the hand comes UP from the grate and not through it, and if you look VERY carefully you can see the outline of the hand even before Morgen says "What?"
Trivia: The message "For Sasha" which appears just before the end credits is a dedication to director Nick Cassavetes' daughter.
Trivia: Closely listen to the TV playing in the background, when Mathew Broderick comes home from school, before all his trouble starts with the Feds. The local news is on, and is saying "a fire broke out in a prophylactic recycling factory."
Trivia: When Frank throws water on a waiter he thought was on fire, he apologizes and claims he thought the waiter was Richard Pryor. This is a reference to the time Richard Pryor, while doing cocaine, set himself on fire and ran down a busy street in L.A.
Trivia: The character, Ivor Novello, played by Jeremy Northam, was a real-life actor and composer. Six of his songs were included in Gosford Park's soundtrack. His film, "The Lodger" that Lady Constance mentions as being a flop, was a real movie directed by Alfred Hitchcock, based on Jack the Ripper.
Trivia: When Ana is telling Hannah, her new assistant, what she expects of her in the job, the dialogue is taken from the 1988 film "Working Girl," starring Dakota Johnson's mother, Melanie Griffith. Ana says, "I expect you to call me Ana. I don't expect you to fetch me coffee, unless you're getting some for yourself, and the rest, we'll just make up as we go along." In "Working Girl," Melanie Griffith says, "I expect you to call me Tess. I don't expect you to fetch me coffee unless you're getting some for yourself, and the rest we'll just make up as we go along."
Trivia: The wonderful soundtrack to this movie topped the US Billboard charts and won the academy award too.
Trivia: The real Penny Chenery, the owner of Secretariat, makes a cameo as a spectator at the Belmont Stakes.
Trivia: The bystanders looking at the camera when Rosemary crosses the street were staring in disbelief as Mia Farrow actually wandered out into oncoming traffic! Polanski did not want to "stage" the scene, so she was literally risking her life.
Trivia: Most of the interrogation scenes in the movie were ad-libbed.
Trivia: During the several scenes where the pilots are communicating with Air Traffic Control, they are always addressed as flight 1549. During the real incident, however, both the pilots and controllers misspoke, labeling the flight number as both 1529 and 1539. This was likely due to the intensely stressful situation.
Trivia: The teenage neighbour to the Hudson sisters is Bette Davis' real-life daughter, Barbara Merrill.
Trivia: Although Martha Scott plays Charlton Heston's mother in this film, she was only ten years his senior.
Trivia: This is the first non-English language film to win the Academy Award for Best Picture.