Best horror movie mistakes of 1953
Visible crew/equipment: Opening credits (also a few minutes in) has a fiery spaceship crashing into the camera for this was a 3D movie. What's interesting is that a mirror can be seen on the left portion of the screen just before the collision. This was apparent at the theatres and on the VHS tape release. For some reason, the DVD release has it cropped out and now the spaceship is off-centered at the beginning (fortunately the bonus material still shows it).
Continuity mistake: In the scene where the star and the professor's assistant are discussing what type of beast was involved in the attack, they are having sandwiches and coffee. One shot shows her front and his back, the next shot shows his front and her back. As the conversation and shots go back and forth, she's holding a sandwich in one and a coffee cup in the other. This happens numerous times and there is no lull in the conversation that would allow the switch.