Trivia: When Eddie walks into Mrs. Chen's store, Eddie asks Venom what he would like to eat. Venom responds that he wants tater tots and chocolate. In Venom: The Hunger, it's discovered that the symbiotes need a chemical called phenethylamine to survive. This chemical can be found in both brains and in chocolate.
Trivia: At one point early in production, the film was going to be slightly retooled in order to make it the third entry in the "Cloverfield" franchise, following "Cloverfield" and "10 Cloverfield Lane." Eventually, this idea was dropped, and the movie was left as a stand-alone film.
Trivia: The spears shown in the lab are from Predator 2 and Alien vs Predator.
Trivia: The name of the demon, "Valak" can be seen on the playground equipment where we first see sister Irene.
Trivia: Lewis' new friend, Rose Rita, is the main character in other books by John Bellairs, author of the original novel.
Trivia: There's a running gag about Burt wearing a new hat, and how it throws everyone off. And it's true - this is the first film in the series where he isn't seen wearing an Atlanta Hawks hat at some point. (Instead he wears a Chicago Cubs hat). According to the documentary on the Blu-ray of the original Tremors, Burt wore an Atlanta Hawks hat in the first movie because the production had been given a large stock of them, and thus a Hawks hat became a staple of Burt's costume throughout the franchise. Michael Gross himself, however, is from Chicago, and in 2016, between the production of the 5th and 6th movies, the Cubs won the World Series (as mentioned in this film). Thus, Gross, a producer on the films, switched to the hat of his favorite team to honor the championship.
Trivia: Following the success of this film, Netflix had to release a statement begging views to not try the "Bird Box Challenge" that was sweeping social media and putting many people in hospital. A news article on the incident can be viewed here https://www.theguardian.com/film/2019/jan/03/netflix-bird-box-challenge-meme-sandra-bullock-blindfold.
Trivia: The design of "The Auditor" is actually based on unused concept art for Pinhead for a "Hellraiser" reboot that was never produced. They simply removed the pins and added sunglasses to the character.
Trivia: An original plot had Laura attacking college freshmen during a game night for their part in her online humiliation and death.