Trivia: Small children have told Billy Bob Thornton they like the film - he was reportedly "stunned" that parents would allow their kids to watch it.
Trivia: After Natalie shoves the 'ice cube' down Brinkman's throat, during the following melee, when Ronica Miles kicks one of Brinkman's men over the balcony the famous "Wilhelm" scream is heard as he falls.
Trivia: When Melissa McCarthy is leaving the precinct angrily she is pointing to all the police staff and insulting them. However, when she gets to one of the cops, she says "I would have f*cked you", she is actually speaking to her husband in real life, Ben Falcone. (01:01:05)
Trivia: The character, Ivor Novello, played by Jeremy Northam, was a real-life actor and composer. Six of his songs were included in Gosford Park's soundtrack. His film, "The Lodger" that Lady Constance mentions as being a flop, was a real movie directed by Alfred Hitchcock, based on Jack the Ripper.
Trivia: K Callan, who plays Christopher Plummer's mother in this film, is actually six years younger than Plummer in real life.
Trivia: The producers have stated that "Jigsaw" was created as they wanted to bring the "Saw" series back, and they wanted to gauge audience interest in more films. When the film became a hit - earning about $100 million worldwide against a relatively tiny $10 million budget - a ninth film was announced, with a tenth also possible.
Trivia: Bubba Smith was originally going to reprise his role as Hightower. One day, Marion Ramsey called up Bubba in tears wondering why she wasn't asked to return as her character Hooks. Bubba already knew that Marion was having some financial difficulties and said he would see what he could do. He called up the producers and asked if she could be in the movie. When they said that Hooks couldn't be written into the script, Bubba refused to take part in the movie.
Trivia: Miles Bron's dining room features several paintings, from the most famous painting in the world the Mona Lisa to others, sometimes with garish self-insertions of Miles himself. One of the paintings is Mark Rothko's Number 207 (Red over Dark Blue on Dark Gray), which Rian Johnson explicitly asked to hang upside down - a hint to the fact that Miles is kinda clueless. (00:41:20)
Trivia: Jimmy didn't die even though it never shows him after he faints on the steering wheel in the car with Lori. He simply passed out. The television cut shows him alive in the ambulance at the end, but for some reason in the theatrical version, they left it out for us to 'wonder'.
Trivia: Almost all of the prisoners in the prison and the prisoners taking place in the riot, were in fact real inmates of that prison, with over 80% of them doing hard time for violent crimes.
Trivia: Kevin James's real-life wife, Steffiana De La Cruz, plays "the lady with the kids in the mall." She takes a lingering glance as he rolls away on his Segway.
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: One of the bank scenes were shot at the Little Bohemia Lodge, where there was an actual shoot-out between John Dillinger and the FBI in 1934.
Trivia: Like Tanedra Howard won a role in Saw 6, Gabby West won the second season of Scream Queens and is featured in this film. She is Kara, Evan's girlfriend. She is underneath one of the rear wheels of the car in the garage trap.
Trivia: In the hilarious fist-fight scene between Nolte and Murphy, they each punch each other the exact same number of times. The fight begins with Murphy landing more punches on Nolte, but then Nolte catches up by the end of the sequence. However, if you count correctly, you'll notice that Nolte is still one punch behind Murphy. That's why once they are both back sitting in the car, about to drive off, Nolte suddenly lands one last knuckle sandwich squarely on Murphy's jaw - now they are even.
Trivia: Director John Singleton can be seen briefly as the goalie in the Thanksgiving hockey game. (00:19:35)