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Continuity mistake: As Miles begins to talk to the doctors in the restaurant parking lot he's leaning into the car. In the next close up shot his position has changed and he's not leaning into the car. (00:15:35)

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Continuity mistake: When we first see Tor Johnson and the other policemen coming out of the police station it's pitch black out. In the next shot of them driving to the cemetery it's broad daylight. (00:08:45)

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Deliberate mistake: After Tor Johnson attacks Paula and the police officer, a second officer shows up at the cemetery with half of the license plate on the patrol car taped over so it can't be read. (01:09:55)

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Trivia: At the beginning Criswell reads, "Can your heart stand the shocking facts about 'Grave Robbers from Outer Space'?" This was the original title of the movie that was changed because of objections by the financial backers.

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Continuity mistake: At Hollis Mulwray's office, the shadows on the pictures to the left of Russ Yelburton's door fall to the right of the pictures as Mulwray's Secretary walks in to see him. Two shots later, as she walks out of the office, the lighting has been changed and the shadows fall behind the pictures. Later the first shadows return. (00:51:20)

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Continuity mistake: As Eros talks about the solaminite, the blinking light on the table in the alien spacecraft stops blinking between shots without anyone going near it. (01:07:10)

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Continuity mistake: Jake takes Lieutenant Escobar to Curley's house and as they drive up, he takes his right hand off of the backseat of the car. In the next shot both of his arms are leaning over the backseat. (01:56:00)

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Continuity mistake: At 1972 Canyon Drive, the shadows on the left stairway wall change radically between shots as Jake walks in. (01:47:40)

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Revealing mistake: Jeff Trent, Col. Edwards and Lt. Harper grab some guns and take a walk in the graveyard, and a prop tree almost falls over as Col. Edwards walks by and brushes up against it with his shoulder. (00:57:30)

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Other mistake: Earlier in the movie, at Geiger's house, Marlowe calls Chief Insp. Bernie Ohls of the District Attorney's Office, and the six digits of Bernie's phone number are 122-145. At the very end of the movie, he's with Lauren Bacall at Geiger's house and again calls Bernie Ohls. This time he dials the same phone at the DA's office but leaves off one digit, calling 12-145. (00:59:55 - 01:52:10)

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Deliberate mistake: Whenever we see Vampira, they use the same footage, as she's always in the same place next to or near the wooden mausoleum. (01:10:15)

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Continuity mistake: John Huston sees Katherine Cross and says to her, "I'm your grandfather," and we see a black car passing by them on the road. In the next shot, it's gone. (02:05:15)

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Continuity mistake: At 1972 Canyon Drive, Jake speaks to Evelyn Mulwray and there's a dress lying on the open suitcase behind her as she sits on the couch. In previous shots, it's not in the suitcase, and no one went near it. (01:52:20)

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Deliberate mistake: Rosemary takes out the Scrabble game, trying to figure out what the anagram means, and spills all letters onto the floor. In the next shot the title of the book "All of Them Witches" appears on the floor without her ever touching them. (01:28:30)

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Deliberate mistake: In the alien spaceship, Eros speaks of the "Solarminite", Jeff Trent calls it "Solinite" and Col. Edwards calls it "Solar-inite". (01:05:55 - 01:07:50)

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Continuity mistake: Jake takes Lieutenant Escobar to Curley's house, and the flower pot on the ledge and the shades in the window move between shots after he walks up to it. (01:56:55)

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Continuity mistake: As Spade speaks to Brigid O'Shaughnessy in the first scene of the movie, there's a file cabinet in between Miles' and Spade's desk. Throughout the scene, the books on top of the file cabinet move without anyone going near them. (00:05:50)

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Audio problem: In the graveyard, as Paula screams when Tor Johnson opens the car door, her mouth is not moving in sync with what we are hearing. (01:00:30)

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Visible crew/equipment: Inside the alien spacecraft, a compassionate Tanna says to Eros, "Do we have to kill them?" The shadow of the boom mike can be seen moving on the left of the screen above their heads. (01:02:20)

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Continuity mistake: After his altercation with the farmer, Evelyn Mulwray drives Jake home and he pulls out a piece of paper with Jasper Lamar Crabb's obit on it. This scrap of paper is not the same one that he tore out of the newspaper in the restaurant before he met with Evelyn Mulwray. The side of this scrap of paper is even, but if you watch as he rips the newspaper in the restaurant, the tear moves to the left as it goes up the sheet. (01:14:20)

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