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

Continuity: In scenes at the general's office, a large wall map of the U.S. is in the background. In some of the closeups you can see that it's a Santa Fe railroad map - and in others the words "Santa Fe" on the logo are taped over.

Other: During the first funeral, the priest only reads the bible for himself and says nothing to the other people.

Continuity: When Paula escapes from her house, she doesn't have shoes but she jas a pair when the man finds her unconscious besides the road.

Revealing: When somebody walks in the cemetery, it happens often that the grass slides under their feet, like fake grass.

Revealing: Often during the film, the trees wobbles a lot when somebody touches them, like fake trees.

Revealing: The pilots are not sitting on normal seats like in every airplane, but on stools or boxes.

Revealing: When the flying saucers are passing over Hollywood and Washington D.C., there's some shots where you can see their shadows on the fake sky.

Continuity: The pilot says to his wife that the flying saucer was cigar-shaped. The actual shape was more like two dishes attached together.

Revealing: When the army is firing at the flying saucers, it's obvious that the sky behind the colonel is made of fabric.

Revealing: The American pilots fly the plane with no hands.

Revealing: Why are all of the space ships the same exact size as the planet?

Revealing: During Criswell's opening and closing narrations it is painfully obvious that he is reading from a cue card.

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.

Deliberate "mistake": In the alien spaceship, Eros speaks of the "Solarminite", Jeff Trent calls it "Solinite" and Col. Edwards calls it "Solar-inite".

Visible crew/equipment: Inside the alien spacecraft a battery operated blinking traffic caution signal is used as a prop from another world.

Deliberate "mistake": As Paula is chased by the ghoul into the cemetery the shots continuously change between night and day throughout the entire scene.

Factual error: The gunpowder made in the 1950's didn't produce the clouds of smoke we see whenever the police fire their weapons, but those of the 1870's did. Ed must have nicked some ammo from the Lone Ranger's property master, eh?

Continuity: 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.