The rocket is portrayed as a white thin football shape. Soft point, wider center then back to a soft point with fins at the back. When they shake off the meteorite that hits them right after they make contact with Earth, the ship is very pointed, is now dark gray with a star on it and the rocket engine is stopped.
During the encounter with the meteor, the astronauts carefully strap themselves in their chairs - which are not only NOT fixed to the floor, but are on rollers.
Laird borrows one of Helen's cigarettes and places it on the dividing line between sunlight and darkness on the moon's surface, in order to show what would happen to anyone or anything that ventured onto the bright side. The cigarette immediately bursts into flame and disintegrates. First, people and objects suffer no adverse effects from sunlight on the moon. Second, since the moon has no atmosphere there could not be any smoke or flames from the cigarette.
When the ship is traveling through space, its rocket motors are running continuously.
When they are on their way to the moon, the interior of the rocket has gravity.
When Kip gets up from the bed, he hits the box at the foot of the bed.
fires a pistol ~ 1:02 and the sound is that of a rifle, not of a pistol.
Wires visible coming from the giant spider.
Alone with Walt in the gold cave, the Cat-Woman Beta's voice is heard replying to his exclamations - she calls him "Doug".