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: 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: The original title was "Freaky Friday the 13th," but it was shortened to "Freaky."
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: Officer John Marshall has fangs, but they aren't particularly noticeable. (00:22:01)
Trivia: This is the first time since 1988 where Frank Welker does not provide the voice for Fred Jones.
Trivia: Dave Franco was a co-writer and (first-time) director of this movie. Dave's real-life wife, Alison Brie, starred as "Michelle." Alison (38) is about 2.5 years older than Dave (35).
Trivia: The "Deception" bottle in the movie has been altered. "Honey Flavored Whiskey" (not just "Whiskey") should be written below "Deception." The movie version bottle also has Tennessee on it, but "Deception" is from Texas. A 750 ml bottle typically costs between $30 - $40 and is 40% ABC or 80 Proof. Some people refer to "Deception" as "Deception and vibe." (00:35:25)
Trivia: Originally, John Krasinski didn't want to write or direct the film. He came up with the basic story, but intended to hand off the project to another writer/director to develop and helm. However, the studio was eventually able to convince him to return.