Trivia: Director Jason Reitman is the son of Ivan Reitman, director of the original "Ghostbusters" and "Ghostbusters II." As a child, Jason actually had a cameo in "Ghostbusters II" during the birthday party in the beginning. (He's the kid who tells Ray he heard the Ghostbusters were "full of crap").
Trivia: While Guy fights with Dude, there is kid with a red shirt watching the game. Behind his back there is a Deadpool poster, another Ryan Reynolds movie.
Trivia: The Sator Square dates back to Pompeii and is a square of 5 Latin words making a palindrome: Sator, Arepo, Tenet, Opera, and Rotas. Whichever orientation the square is in the words line up in both directions. Each word features in the film - Kenneth Branagh's character is named Sator, the forger mentioned near the start is Arepo, the title is of course Tenet, the opening sequence takes place in an Opera, and the Ukranian special forces who arrive in that sequence have badges on their arms with "Rotas" on them.
Trivia: As the family is leaving home in their car, a neighbor asks that they also take her daughter, Ellie. ELE, pronounced the same as the name, stands for Extinction Level Event.
Trivia: Panning around Diana's apartment, the camera briefly lingers on a photo of her with an elderly lady, with no elaboration of its significance. But look closely and you'll realise the woman in the photo is Etta from the first movie, again played by Lucy Davis, just made up to look 67 years older.
Trivia: When Barley and Ian are paying their toll at the "troll bridge", look on the right hand side and you can see the Pizza Planet Truck.
Trivia: The family of late author Roald Dahl who wrote the novel The Witches gave director Robert Zemeckis permission to do a remake on the condition that the ending of the movie follow the ending of the book, where the boy remains a mouse.
Trivia: Will Smith dismisses the new task force "AMMO" as "a high school musical boyband with guns." AMMO member Kelly is played by Vanessa Hudgens, who starred in the High School Musical franchise.
Trivia: The original title was "Freaky Friday the 13th," but it was shortened to "Freaky."
Trivia: Lemtov says everyone hates the UK - this is harsh but fair in Eurovision terms, as the UK hasn't won since 1997 and regularly has a disappointing score, with some theorising political reasoning plays a part. Lemtov is played by Dan Stevens, who's British.
Trivia: This is the third film in the X-Men franchise to make reference to the villain Mr. Sinister, following X-Men: Apocalypse and Deadpool 2, by way of the Essex Corporation (Nathaniel Essex being Mr. Sinister's real name). The logo for the Essex Corporation is a diamond, similar to the ones Mr. Sinister has on his forehead and chest in the comics. Unfortunately, since this is the final film in the Fox X-Men franchise, Mr. Sinister himself never made a physical appearance in any of the films.
Trivia: Chloe Zhao won the Academy Award for Best Director for this movie. Zhao became the first Asian woman and the first woman of colour to win the Award.
Trivia: The language Sacha Baron Cohen speaks is actually Hebrew. His daughter, played by Maria Bakalova, speaks Bulgarian, the actress' native language.
Trivia: Thea is played by Samara Weaving, niece of Hugo Weaving. The elder Weaving notably co-starred with Keanu Reeves in the "Matrix" trilogy.
Trivia: Dylan's mom's story about the Florida man who was in bed when a sinkhole opened up under him actually happened to Jeffrey Bush on 2/28/13 in Seffner, Fl (Tampa suburb). He (along with his bedroom furniture) was entombed. Brother Jeremy heard him scream, jumped in with a shovel and tried to dig him out, but Jeffrey's body was never recovered. The house was razed and the sinkhole filled in but it re-opened 2+ years later on 8/20/15. Sinkholes are common in FL and 6 states - AL, KY, MS, PA, TN, TX. (01:26:35)
Trivia: Jurnee Smollett-Bell performs all of her own singing in this movie.
Trivia: When Fletcher is pitching his story to the guy at Miramax, The Man from UNCLE poster is in the background. Guy Ritchie also directed that movie, and both movies feature Hugh Grant.