Continuity mistake: At the beginning of the scene where the pilot's wife is attacked in her bedroom by (not) Bela Lugosi, look at the pictures on the wall above the bed. After the attack begins, the pictures are different.
Continuity mistake: When the men first enter the spaceship, one of the windows shows an afternoon sky and the one next to it shows a nighttime sky. (01:11:20)
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: 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 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: 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: 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: 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: 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: 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)
Continuity mistake: When the flying saucer is seen taking off from the cemetery, it is saucer shaped. However, when it is on the ground the ship appears to be in the shape of a square building. (00:37:05)
Continuity mistake: The Ghoul Man is turned to bones by a ray from the alien spaceship and Col. Edwards throws the cape off of the body revealing the horrible sight. A couple of shots later they wake up Patrolman Kelton who is now lying on the cape. (00:55:30)
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)
Continuity mistake: As he interviews Col. Edwards, General Roberts' clock moves 20 minutes throughout the scene yet only 2 minuets of movie time elapse. (00:43:55)
Continuity mistake: In the scene on the back yard portico where the cop is backed up to the other cast members, the male vampire knocks him down to the ground. It then shows the green 'rays' shooting off the landed saucer and the vampire crumples to the ground. A cast member throws off the vampire's cape revealing a skeleton. At this point the cop is missing from where he fell in front of the vampire. Next shot someone helps the cop up from the ground where he is lying almost touching the revealed skeleton. Also, the skeleton used for the skinny male vampire is the same one used for the grossly overweight Tor Johnson.
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: 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: 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: The soldier talking to Col. Tom Edwards is holding a walkie-talkie in some shots and not in others. (00:20:30)
