Deliberate mistake: Per his autopsy in Saw IV, John Kramer was 52 years old at the time of his death, and this film takes place between Saw and Saw II. Tobin Bell was around 80 years old at the time of making this film, and thus looks far too old to convincingly play someone in their early 50s. Amanda Young also looks a lot older in this film compared to other entries in the franchise that are chronologically later.
Saw X (2023)
1 deliberate mistake
Directed by: Kevin Greutert
Starring: Tobin Bell, Shawnee Smith, Steven Brand
Revealing mistake: John Kramer's chain first goes on the side of his stomach, and then it's on his backside... impossible, otherwise the chain would split him. (01:35:47)
John Kramer: I still have a lot of work that needs to be done.
More trivia for Saw X
Question: If the plan was to get Cecilia and Parker into the room to trap them in with the gas, then why did John even set up the bloodboarding trap? What would have happened if they both decided to just stand there and watch until the kid or John died? Why not set the machine up so that it "fails," and then Cecilia and Parker would have likely just left them there to starve?