Continuity mistake: During Criswell's opening narration, the time of the story changes from taking place in the future ("Future events such as these will affect you in the future.") to taking place in the past ("what happened on that fateful day..."). (00:02:30)
Continuity mistake: At the beginning of the movie the narrator states that the funeral for the old lady is taking place at dusk. The next scene, in the airplane, is supposed to be taking place at the same time yet when the co-pilot calls the control tower he says that it is fifteen minutes to four and he doubts that the controller would be awake at this time of the morning. (00:04:20)
Continuity mistake: The co-pilot radios in to Burbank tower in the middle of the night. In the next shot we see the saucer and it's broad daylight. (00:04:30)
Continuity mistake: The grave diggers are covering Bela Lugosi's wife's grave in broad daylight. In the next shot when Vampira comes walking out it's in the middle of the night. (00:06:20)
Continuity mistake: Bela Lugosi's wife was buried under ground and we see the gravediggers cover the casket. In the next shot we see her above ground near the mausoleum. (00:08:15)
Continuity mistake: A man at the old man's funeral says "It's getting dark out." It's already pitch black out. (00:08:30)
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)
Continuity mistake: Tor Johnson sits in the front seat of the squad car at the police station. In the next shot of them arriving at the cemetery he's sitting in the backseat. (00:09:20)
Continuity mistake: When the police are driving to the cemetery, it is daytime and their car is a standard police car with lights and sirens. When they reach the cemetery, it is night and the car is an ordinary car, without lights and sirens, and a different colour. (00:10:05)
Continuity mistake: As Tor Johnson goes into the graveyard with his flashlight we see the same headstones we saw a few moments earlier when the woman screamed, only now they've been rearranged. (00:10:20)
Continuity mistake: Tor Johnson walks to his left past the mausoleum as the ghoul comes out and follows him. He never turns around but two shots later if you look at the head stones, he comes up to the same place again. (00:14:45)
Continuity mistake: When the flying saucers are spotted over Wash DC, the scene shows a rotating radar antenna. First it's rotating counter-clockwise, then in a subsequent scene it's rotating clockwise. (00:17:45)
Continuity mistake: When the flying saucers are flying over Hollywood, it's nighttime in some scenes and daylight in others. (00:17:45)
Continuity mistake: The soldier talking to Col. Tom Edwards is holding a walkie-talkie in some shots and not in others. (00:20:30)
Continuity mistake: The stewardess comes into the cockpit and holds the clipboard between her folded hands. In the next shot she's holding it with her left hand. (00:28:25)
Continuity mistake: The stewardess says to the pilot, "I'll be right back," as she touches him with her right hand. In the next shot she's nowhere near him. (00:29:15)
Continuity mistake: When the stewardess enters the cockpit with her clipboard, she disappears during a closeup on the pilot. It has nothing to do with a different camera angle. (00:29:20)
Continuity mistake: As Tor Johnson rises from the dead his head stone gets larger between shots. (00:32:30)
Continuity mistake: As Tor Johnson rises from the dead there's dirt all over his body but none on his face or head. (00:32:50)
Continuity mistake: As she is chased by the ghoul in the cemetery, Paula knocks over one of the wooden tombstones and you can see the stand underneath that holds it up. The next time we see it two shots later it's been set straight again. (00:32:55)
