Revealing mistake: Toward the end of the movie, Eve attempts to throw Addison out of her room in New Haven. He slaps her and there is a delay before she jerks her face as if it has been slapped.
Revealing mistake: In this scene we see Claudette Colbert and her husband talking. In the background it's obvious the ocean scene is a stage prop, the waves in the sea don't move at all.
Revealing mistake: The crew of spaceship Luna make an EVA to dislodge a stuck radar antenna on the ship's hull. One astronaut pokes a tool into a cavity to dig out an interfering mass of machine grease. As he digs, the material comes out of the hole and rolls down the side of the skin of the rocket under its own weight, rather than floating off weightlessly into space.
Revealing mistake: When there's a cave-in in the tunnel the POWs are building, you can hear, as the POW is tunnelling out of the cave-in, his trowel hitting the glass that separates him from the camera and crew.