Other mistake: About seven minutes before the end, the geologist and company and a Highway Patrol car go to the edge of town to get a better view. As the Highway Patrol car skids to a stop look on the road and there is already a longer skid mark. I'm guessing that in the first take the car skidded too far.
The Monolith Monsters (1957)
1 other mistake
Directed by: John Sherwood
Starring: Les Tremayne, Lola Albright, Grant Williams, Trevor Bardette
Continuity mistake: When the group go out to inspect the house damaged by the monoliths, the dirt around the rocks is white while the rest is dark. The professor squats down and picks up white dirt in his left hand and dark dirt in his right hand, then calls the geologist. In a close up, he opens his hands and the dirt colors have changed hands - the shot has been reversed.