House on Haunted Hill

New this month Plot hole: When Mr. Loren introduces his wife to everyone, he tells her, "You know Watson Pritchard of course." That can't be because at the beginning of the movie the characters are asking if any of them know Frederick Loren. No one personally knows him including Watson Pritchard. He says, "I don't know him, all the details about renting the house were done by mail." If that's the case, it's impossible for Annabelle to know Pritchard since Frederick invited all the guests without his wife's approval. (00:34:05)

DrLoomis1978

New this month Plot hole: Even if Dr. David Trent's and Annabelle Loren's elaborate plan had worked flawlessly (framing Nora Manning for Frederick Loren's death), the fact remains that they faked Annabelle's death for everyone to see, which would immediately arouse suspicions for investigators. Even if Annabelle and Dr. Trent somehow fled the scene before the police arrived the next morning, their actions would still raise many questions that implicated them; thus, their clumsy and convoluted scheme was far from being the "perfect crime" they imagined.

Charles Austin Miller

Continuity mistake: When Annabelle gives Frederick her gun, he places it in the mini-coffin and closes the coffin. However, in one of the next shots, we see that all coffins are open.

Continuity mistake: Frederick picks up a bottle of champagne out of the ice bucket and shakes it a little. As he does this the foil and wire are still on top. He turns and aims the bottle at his wife, then tips it back and the foil has vanished as he now just removes the wire and cork.

Factual error: As Frederick is explaining to his guests how to use their .45 automatics, he fires one round at a near-by vase, shattering it. However, it leaves no bullet hole in the wall directly behind the vase.

Other mistake: Once Dr. Trent enters the bedroom where Mrs. Loren is lying down "dead", they begin talking. Trent says "At first I couldn't get Nora to protect herself with a gun." There is no scene in the movie where he tries to convince her to use the gun, Lance is responsible for that. (01:02:25)

DrLoomis1978
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Suggested correction: After Annabelle Loren is found hanging under suspicious circumstances, both Lance Schroeder and David Trent advise all the other guests to stay in their rooms with their guns and shoot any intruders.

Charles Austin Miller

Just before he leaves for the meeting, Lance tells Nora, "If you have to, you use it." Nora was not at the meeting to hear what was said, so ultimately, it was Lance who got Nora to protect herself with the gun.

DrLoomis1978

There's an important mistake in your version of Dr. Trent's quote. What Trent actually says is, "At first I couldn't get Nora to want to protect herself with a gun." He's not saying that he personally advised her to protect herself; he's saying that he, through his various scary tricks, had failed to scare Nora into arming herself. Trent's immediate next lines are: "But after you appeared at the window, everything began to work just as we planned. You were wonderful, just the touch that finally drove her into complete hysteria." We know that David Trent and Annabelle Loren were behind a number of staged scares (such as the witch in the basement, the attack on Lance, Annabelle's hanging, etc) intended to push Nora toward hysteria, setting her up, of course, to kill Mr. Loren "by accident," thereby committing the perfect crime.

Charles Austin Miller

Other mistake: When Lance leaves Nora to go have a meeting with the remaining people in the house and they accuse Loren of murder, his room is locked from the inside but when he returns he opens the door without any trouble.

Factual error: In reference to the skeleton in the pit, a skeleton with its flesh burned away would have nothing to hold it together. Frederick states it is Dr. Trent's skeleton. For him to run wire through the skeleton would have been impossible in the time he had. He had only a few minutes at best before his wife came down. He'd have had to fish the loose bones out of the pit, wire them all together, attach the whole thing to the puppeteer rig, and put it back in the pit.

Jason Hoffman

Factual error: After his wife falls into the pit, Frederick casually grabs Dr. Trent's skeleton; the skeleton that only moments earlier had been submerged in acid. His hand should have been badly burned.

Jason Hoffman

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