- Creator Backlash: The director of the film wasn't happy with the ending, which differed from the book. See below.
- Dyeing for Your Art: Robert John Burke lost twenty pounds for Billy's thinner scenes, and naturally wore a Fat Suit for before the curse. Depending on what stage of Billy's condition he was filming, he could spend up to six hours in the make-up chair.
- Executive Meddling:
- A sad example. Director Tom Holland was diagnosed with bell's palsy during filming. If he had gotten an immediate steroid injection, he would have been fine. But execs insisted he keep working, meaning it was thirty-six hours before he could see a doctor. It took him a year and a half to fully recover.
- The original ending was the same as the book's, but test audiences hated it. As a result, they added in a bit more of Billy deciding to kill Dr Mikey with the pie too.
- Name's the Same: The film was directed by Tom Holland, not Tom Stanley Holland, the actor known for playing Spider-man (who was a few days short of five months old when the film was released).
- Too Soon: The film was in Development Hell for six years because studio execs worried that Billy's curse would hit too close to home for people affected by the AIDS crisis.
- Typecasting: John Horton plays Judge Carey, having previously played a judge in The Shawshank Redemption (another Stephen King adaptation).
- Underage Casting: Michael Constantine was in his late sixties playing Tadzu Lempke. Justified because you'd be hard pressed to find a 106-year-old actor.
- What Could Have Been:
- At one point the film was going to have some gruesome SFX make-up for Billy Halleck to have his flesh dangling off his jaw and cheekbones. They scrapped it because it was too horrific.
- Dino De Laurentis was planning to produce the film, with Sam Raimi directing, after completing Maximum Overdrive (another Stephen King adaptation). But they ended up committed to Evil Dead II.
Trivia / Thinner