Visible crew/equipment: Dr. Marvin decides to try out his new improved magnetic interference unit on a real alien spaceship that shows up outside the Belmont lab. As the truck with the device on it pulls up you can see the reflection of the crew in its door. (00:51:50)
Visible crew/equipment: In the beginning of the movie as the two doctors walk up to it, equipment and lights are seen reflected in Dr. Bassett's door. (00:02:00)
Visible crew/equipment: At the climax, when the creature escapes and begins throwing furniture around, you can clearly see the wires attached to the pieces of furniture.
Visible crew/equipment: When the space visitors land on the planet and Robbie the Robot comes to meet them, you can see the reflection of a load of studio lights in the plastic visors of the vehicle Robbie is driving.
Visible crew/equipment: When the monster supposedly falls into a pit behind the altar at the end of the film, look at the left side. The mat the actor lands on visibly bounces into view.