Pet Sematary II (1992)

Revealing mistake: When the kids are burying Gus, his supposedly dead face flinches when they shovel dirt on him.

Gus Gilbert: No Brain, no pain... think about it.

Trivia: Originally Stephen King's name was included with the opening credits; but after seeing a rough cut of the film, he hated it so much he demanded that his name by taken off the film, and all advertisements.