Continuity: 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.

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: The soldier talking to Col. Tom Edwards is holding a walkie-talkie in some shots and not in others.

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.

Continuity: A crew member's shadow can be seen moving across the graveyard set as two men carry one of the dead bodies on a stretcher in front of the two policemen.

Continuity: 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.

Continuity: As the saucer flies over the graveyard, Tor Johnson's shadow can be seen on the studio wall behind him.

Visible crew/equipment: The woman at the graveyard lets out a scream as she sees the dead bodies. It's obvious that the bodies are dressed up store mannequins.

Visible crew/equipment: 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.

Continuity: 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.

Continuity: 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.

Continuity: 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.

Visible crew/equipment: Someone's hand from behind touches the shower curtain in the cockpit of the plane as the pilot says, "You better radio in for landing instructions, Danny".

Visible crew/equipment: As a prop they use a 50' style radio microphone strapped to the co-pilot's chest.

Deliberate "mistake": When the pilots are flying in the airplane there's a strange device above the co-pilots head. Later in the movie we see this same prop used again inside of the spaceship as the alien beauty Tanna opens up the hatch.

Continuity: 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.

Visible crew/equipment: At the funeral scene in the beginning of the movie, the wooden crosses added in the cemetery are obvious props.

Continuity: When the flying saucers are flying over Hollywood, it's nighttime in some scenes and daylight in others.

Revealing: When the flying saucers leave the planet, you can see their shadows on the fake planet's surface.

Revealing: After Clay finally has been killed, you can still see him breathing, and even blinking his eyes.