Revealing: When the UFO makes the huge flash that knocks everyone in the cemetery down, one of the police officers kicks a tombstone as he falls and it wobbles back and forth.

Continuity: 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.

Visible crew/equipment: In the scene where Eros shows the men the monitor, look at the monitor carefully and you can see the reflection of the studio lights.

Visible crew/equipment: When the pilots are driving the plane and a spaceship pass them you can see a shadow of a microphone.

Other: The exhaust of the space ship is so strong that it knocks down Jeff and Paula to the ground, but their hair doesn't get changed at all.

Continuity: A man at the old man's funeral says "It's getting dark out." It's already pitch black out.

Continuity: 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.

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.

Deliberate "mistake": They keep using the same footage of Bela Lugosi walking in the cemetery, even the cars driving by out on the road are the same.

Plot hole: Eros makes it very clear that his race does not 'cling to life.' If this is the case, then why is he so determined to save everybody?

Deliberate "mistake": At Tor Johnson's funeral how on earth could they not see Vampira standing right next to them?

Audio problem: The stewardess comes into the cockpit and the co-pilot says, "Well, I know a friend that will help us". If you look closely, he was going to say more but it was edited out.

Visible crew/equipment: When Colonel Edwards enters the General's office, the moving boom mic is visible at the top of the screen.

Revealing: 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.

Visible crew/equipment: Col. Tom Edwards makes "The greatest decision of his career" in front of a clear sky, and you can see his shadow fall on the fabric covered wall behind him.

Continuity: 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.

Continuity: 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.

Audio problem: After Tor Johnson drops her, Paula says, "Oh, I'll be alright" but her lips don't move.

Continuity: As he interviews Col. Edwards, General Roberts' clock moves 20 minutes throughout the scene yet only 2 minuets of movie time elapse.

Continuity: 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.