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The Killing of a Sacred Deer (2017) Poster

Trivia

Jump to: Spoilers (3)
Heart surgery scenes in the film are real. They were filmed during an operation on a real patient who was undergoing quadruple bypass surgery which Colin Farrell attended.
The film's title comes from the ending of the tragedy Iphigenia in Aulis by Euripides.
Colin Farrell admittedly felt nauseous after reading the script for the film.
When Steven is at the school for the parent teacher conference, the principal tells him that Kim wrote a paper on Iphigenia for which she got an A, and that was read aloud to the class. Iphigenia, in Greek mythology, is the daughter of Agamemnon. She who was to be sacrificed for the sins of her father.
Though their characters are two years apart, Raffey Cassidy (Kim) is ten years younger than Barry Keoghan (Martin.)
Nicole Kidman and Colin Farrell began working together on The Beguiled (2017). Only a few weeks later they wrapped filming on this film. Both films would go on to be in competition for the Palme d'Or at the 2017 Cannes Film Festival and both would win awards in the official competition ("The Beguiled" won the Directing award for Sofia Coppola while "The Killing of a Sacred Deer" shared the Screenplay award with Lynne Ramsay's You Were Never Really Here (2017)).
During the first diner scene with Steven and Martin, a deer is visible on the wallpaper.
Many scenes in the film seem to have been draught out of a Edward Hopper's painting.
Second collaboration between Yorgos Lanthimos and Colin Farrell, the first being The Lobster (2015).
Acting for the 1st time in his 67 years, Cincinnati native Michael Trester as the Elderly Man converses with Colin Farrell, Nicole Kidman and Bill Camp in a scene at a medical convention banquet.

Spoilers 

The trivia items below may give away important plot points.

A shot panning in towards Bob (Colin Farrell and Nicole Kidman's son), just as he begins to get sick, displays a photo of a deer above his head, foreshadowing the ending of the film.
Martin's favorite movie is Groundhog Day (1993), which is famous for not explaining how the lead character ends up in a time loop, much like this film never explains how Martin sickens Steven's family.
Bob is the only member of the Murphy family that doesn't smoke a cigarette during the film. Furthermore, when Martin asks if he can light a cigarette in Kim's room, Bob responds with "You'd better not."

See also

Goofs | Crazy Credits | Quotes | Alternate Versions | Connections | Soundtracks

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