Saw | Saw II | Saw III | Saw IV | Saw V | Saw VI | Saw 3D | Jigsaw | Spiral | Saw X
- Absurdly Short Production Time: It took 51 days to shoot the film.
- Blooper: Between the scene with Samuel L. Jackson's iconic "You wanna play games, motherfucker?" and Marcus' next shot, his hands are suddenly covered in blood. This was the result of a cut trap scene, as explained further in the movie's What Could Have Been page.
- California Doubling: Spiral is set in the same nameless American city as the rest of the Saw franchise. The movie was shot primarily in Toronto, Ontario, with the area underneath the Gardiner Expressway used as a major set piece, and older-model streetcars visible in the window of the butcher shop.
- Completely Different Title:
- In most of Latin America, the film is re-titled Espiral: El Juego del Miedo Continúa (Spiral: The Game of Fear Continues, compared to the original subtitle, From the Book of Saw).
- The film was titled 死亡漩渦：奪魂鋸新遊戲 (Spiral of Death: Soul-Slashing Saw's New Game) in Taiwan and 漩渦：恐懼鬥室新遊戲 (Spiral: Escape Room of Terror's New Game) in Hong Kong.
- Dueling Works: The film was released just two months from Escape Room: Tournament of Champions, the second film in another trap-based horror franchise that began in the interim between Jigsaw and Spiral. The two films wound up performing nearly evenly in both box office revenue and critical reception.
- Playing Against Type: This is Chris Rock's first foray into the horror genre, being otherwise known as a comedian. He plays the film's protagonist, is the one who came up with the original idea of the story, and was the executive producer.
- Promoted Fanboy: Chris Rock is a huge fan of the Saw franchise, and pitched the idea of Spiral to the film's producers.
- Recycled Set: It was never explicitly stated by the producers, but the set used for the bread factory where Fitch's test takes place is clearly the same one for the warehouse that Edgar enters in Jigsaw.
- Release Date Change: As was the case with the other films, this entry was set to be released in October 2020, but it was moved up to May in order to avoid competition with Halloween Kills. Then it was delayed to May 21, 2021 due to the COVID-19 Pandemic, before later being moved forward one week after Black Widow was delayed to July.
- The Shelf of Movie Languishment: Reportedly, filming and post-production of Spiral was already completed by the end of 2019, well before its final release date in May 2021 or either of its original dates in 2020.
- Similarly Named Works:
- Throw It In!: A lot of Zeke's dialogue was improvised by Chris Rock.
- Working Title: The film was first announced as The Organ Donor.
