As the first astronaut is exiting the ship's hatch for the first time, a reverse angle shows someone already walking on the moon.
Stock footage of an object arcing towards Earth depicts an extremely long 'tail' of engine fire while close-up model shots show only a small flame (which is crooked, pointing 'up').
During the countdown, the launch vehicle Lunar Eagle switches from an Atlas to a Juno rocket, and then back again.
When the captain gets out of his launch (lawn) chair after takeoff, he immediately removes his helmet and climbs the ladder to the next higher deck. The scene then cuts to him approaching a desk after entering the upper level, where he once again removes his helmet.
The "Oriental picture writing" that the moon people send to the ship is obviously just random shapes and designs, and doesn't resemble Japanese writing in the slightest.
On several occasions the ship's rocket/engine produces sparks that fall and smoke that rises. Neither of these would or could occur in space which has no atmosphere or field of gravity.
The dashboard on the spaceship has a magnetic compass, which would be useless in space.
The rocket spews flames and sparks in space, during the moon landing, and when meteors strike the lunar surface, which is impossible with no air. The moons craters and caves spew volcanic smoke which can neither exist nor move in a vacuum, as well as the clunking sounds of the moon stones they rumble through.
The astronauts go through their ritual oxygen tank check before leaving the ship, but not one of them is wearing a face plate when they step onto the lunar surface.
Clothing can be glimpsed on the woman taking a "shower" on the rocketship.
Dr. Rochester steps into the "quicksand" and is sucked under. But before it cuts away from the wide shot, where he first cries out and drops out of shot, he is visible dropping to the set floor to simulate getting sucked in. The following close-ups depict him sinking slowly into the moon surface.
The first time the spaceship is seen in space (about 10 minutes in) it crosses a dense patch of stars (about 15) and they can still be seen right through the spaceship as it passes.
Person walking on the moon in the shadows.
As the crew attempt to pull Anderson from the "quicksand", his legs, supposedly being sucked straight down, lift a little, and reveal that he is simply lying down on his back under only a foot of sand.
Supposedly at the height of space technology the astronauts are wearing conventional 50s jet pilot suits and helmets.
Possible to see lighting equipment, catwalk railings at top of frame in wide shots on moon.
As Heinrich and Ruskin's shuttle plummets to the Earth, a stick is visible extending from the left side of the screen to the model and is obviously being lowered by a stage hand (the stick actually obscures some of the stars on the backdrop).
The view of Earth on the return trip shows incorrect river systems. For instance, there is no prominent river that drains from the south end of Lake Michigan nor are there river drainages that show the northwest to southeast trends.
The implication is that because everyone who was frozen was in suspended animation, they were fine after they were thawed. But freezing and thawing does damage on a cellular level, unaffected by suspended animation.
Shadow of boom mic visible in rocket compartment as it approaches the earth after blasting off the moon.
During the meteor shower, a crewman calls out coordinates ".7 and 5/10ths", which is mathematical nonsense.