Plot hole: When Toby is checking everyone to make sure their costumes work, wheelchair-bound Bud is shown standing in a coffin-fixture. Since he was in the coffin costume, there was nothing there to be "holding" the character in a standing position, and he was obviously not in his wheelchair, as he is at standing height with everyone else.
Plot hole: Cady's plan to get revenge on Bowden includes raping and assaulting Lori. This part of the plan, however, hinges on Lori not reporting Cady to the police, which he had no way of knowing that she wouldn't. If she reported him, the investigation would have created huge problems for Cady. He bit off a chunk of her face, so the wound could have been matched to his teeth, as well the chunk of skin he bit off and spit out most likely would have had traces of his saliva on it. Not to mention evidence that could have been gathered from a rape kit and eyewitnesses that could have placed Cady at the bar with Lori beforehand (the bartender, for example). In all likelihood, he would have been arrested, tried and convicted. Lucky for him, Lori was too ashamed to report the incident.Phaneron
Plot hole: No amusement park ride company would ever produce a prop scythe that was as sharp as depicted in the movie.
Plot hole: When Torch, Blade and Leech Woman go to the farmer and his wife's house while they are asleep, they killed both the farmer and his wife. The wife was consumed by flames, but not the farmer. When Torch and Blade returned to the Puppet Master with the brains, the Puppet Master says the brains are burnt up. The farmer's brain would not have been burnt up, only his wife. (00:31:50 - 00:37:50)ujeremy