Trivia: Bill Skarsgård was purposely kept separated from the child-actors during filming, and outside of some early publicity photos, the kids never saw him until the first scene they filmed together in order to get their genuine reactions. The kids were both genuinely scared of him, but also incredibly excited after filming their first scene.
Trivia: The line "Hold on to your butts" said by Samuel L. Jackson is also said by him in Jurassic Park.
Trivia: In addition to the more obvious nods to the original (including the name "Alan Parish" being scratched into the hut), all of the statues in the world of Jumanji are modeled after the game-pieces and box from the original film.
Trivia: Anthony Daniels once again portrays C-3PO, making him the only actor to appear in every Star Wars film to this point. He also plays C-3PO for a brief cameo in Rogue One.
Trivia: Vin Diesel was given a special "Groot" version of the script that contained "translations" of what Groot was actually saying whenever he utters his one and only repeated sentence "I am Groot." This was done to help him deliver his dialog appropriately, since he would know exactly what point Groot was trying to get across with each line. Reportedly, only Diesel was given this version of the script - in everyone else's script, Groot's dialog is merely "I am Groot" over and over again.
Trivia: When Ana is telling Hannah, her new assistant, what she expects of her in the job, the dialogue is taken from the 1988 film "Working Girl," starring Dakota Johnson's mother, Melanie Griffith. Ana says, "I expect you to call me Ana. I don't expect you to fetch me coffee, unless you're getting some for yourself, and the rest, we'll just make up as we go along." In "Working Girl," Melanie Griffith says, "I expect you to call me Tess. I don't expect you to fetch me coffee unless you're getting some for yourself, and the rest we'll just make up as we go along."
Trivia: Jennifer Connelly voices the "suit lady", the AI in Spider-Man's suit. In real life she's married to Paul Bettany, who voiced Jarvis, the AI in Iron Man's suit, and who later played Vision.
Trivia: Taron Egerton refused to shoot the scene where he implants the tracking device into Charlie's girlfriend's groin, as he felt uncomfortable touching the actress in that area. The hand we see reaching down into the woman's underwear is actually the hand of the actress' husband, who gladly volunteered to "double" for Egerton's hand in that scene.
Trivia: The film is edited by Kevin Greutert, who edited "Saw" 1-5, and directed the sixth and seventh films. Greutert is one of only a few holdover crewmembers from the original run of the series to return. He said he felt an obligation to be a part of "Jigsaw"- feeling that given his past with the series, he should help usher the franchise into the new direction that the producers and writers wanted to take, while also helping to maintain ties to what came before.
Trivia: The severed heads in the guillotine basket are of the film directors Joachim Rønning and Espen Sandberg.
Trivia: It was comedian Jerry Seinfeld of all people that gave Hugh Jackman the idea to retire from the role of Wolverine. Jackman was attending a diner party with Seinfeld and asked him how he knew when it was time to end his legendary sitcom. Seinfeld told him "You need to leave something in the tank. If you feel like, 'OK, I think we might have said everything but there is still a little bit left, ' then that's the time to go." Jackman took it to heart and decided to go out on a high note and make the best film he possibly could to end his tenure as Wolverine, and considers "Logan" to be the most personal of all of his portrayals of the character.
Trivia: David Hasselhoff makes a cameo in the middle of the movie, and another one at the end drinking a beer with the Rock. He played Mitch in the 90's TV show.
Trivia: At the start of the film when Baby is walking with the coffees, the words to the song he is listening to are often seen on the walls as graffiti and on lamp posts as posters as he walks past.
Trivia: There were rumors right up until the release that the film was a prequel to the 2004 superhero movie "Hellboy" - in no small part because both films feature an amphibious man played by actor Doug Jones as one of the lead characters, and both films were also directed by Guillermo del Toro. Despite the widespread speculation, del Toro consistently denied any plot or character associations between "The Shape of Water" and the Hellboy films.
Trivia: When Hobbs gets sent to prison, Shaw calls him Hercules. Dwayne Johnson played Hercules in a previous movie.