Patzer

When the KGB agents chase Javorsky, the scene cuts between day and night repeatedly.

The boys that wander off while their parents fix a flat tire are called Randy and Art by their mother and Randy and Mike by their father; they call each other Randy and Art.

At 39:24, Mrs Ratcliffe is standing in the middle of the dirt road with tire tracks present She stops. At 39:36 she is seen on the side of the road and walking to the middle of the dirt road with the same tire tracks, only now their car is mysteriously parked in the middle of the road.

The Beast wears a suit jacket during the shootout; the jacket disappears a few seconds later.

During the opening car chase, the scenery repeatedly changes from desert to forest to mountains and back.

The Beast somehow enters, unnoticed, the small two-door car to strangle the female passenger from behind, then exits the car. This is not possible, especially for someone as large as the Beast.

Part of the plot involves a secret Soviet moon landing that is being kept under wraps. Given how eager the Soviet Union was to prove that Communism was superior to Capitalism in every way (technology, economy, industry, etc), if they had really made it to the moon ahead of the Americans, they would've sooner embraced capitalism, McCarthyism, and McDonalds than hide that fact from the entire world.

The name of the title location is erroneously pluralized as Yucca Flats. It's actual name is Yucca Flat.

When the police officer on the plane opens the window and starts shooting, neither the strap around his gun nor his hair blow in the wind that would be created by a plane moving at such a high speed.

In the pre-opening-credits sequence, a woman is seen wrapping a towel around herself and drying off after a bath or shower. She does nothing but sit on her bed as the Beast calmly walks up and strangles her.

The Radcliffes get a flat tire and pull over on a desolate desert highway. As the dad changes the flat tire, the shadow of the film crew vehicle is right behind him, along the side of the road.

When the aerial rifleman takes his first shots, the rifle scope cover is still on the rifle.

When the "Beast" strangles the three people in the broken-down car at 9:40, none of them struggle but are completely still and just succumb. The girl's hands are clearly visible, yet she makes no effort to struggle and just dies quietly.