Trivia: The video-game franchise was so popular, the movie was profitable for production studio Blumhouse before it was even released, with the film recouping its budget thanks to the millions it made from the streaming and theatrical distribution rights being sold. It subsequently broke the record for the biggest Halloween weekend box-office opening with an estimated $78 million, and became the second-highest opening for a video-game movie, behind only "The Super Mario Bros." movie.
Trivia: The waiter who asks Jane and the others if they'd like to order lunch is played by YouTuber Matthew Patrick, who has a video series called "Game Theory" and has done dozens of videos based around the "Five Nights at Freddy's" video-games. Him saying "That's just a theory!" when someone mentions breakfast being called "the most important meal of the day", is an inside joke. (He ends every "Game Theory" video by saying "That's just a theory... a game theory!").
Trivia: The filmmakers wanted to honor the fact that the villains are animatronic robots and decided to use practical effects instead of CGI. The Jim Henson Creature Shop actually built fully-functional animatronic puppets for each character, in addition to suits that could be worn by actors for movements that were too complex for the animatronics to do.
