Continuity mistake: During the beginning of the movie, as the camera zooms in on the image of Mars, some of the background stars disappear and reappear. (00:01:45)
Revealing mistake: Near the beginning, when the giant fiery comet hits, it goes behind a hill, yet you can still see the glow of the comet through the hill and the shops in front of the hill, revealing it is a backdrop. (00:04:20)
Continuity mistake: When the Martian first emerges from the 'meteor', the three men approach it, waving flags and hats. The man in the middle is waving his hat up high in one shot, yet in the following shot isn't waving his hat, but is holding it down by his side. (00:16:40)
Revealing mistake: As the command post is engulfed by fire, one (stuntman) soldier comes crashing through and over a table. As he does, the gloves he wore to protect his hands during the fire scene are visible. Nobody else was wearing gloves. (00:38:00)
Continuity mistake: When Sylvia is cooking the eggs in the farmhouse, she moves the kettle onto the centre of the stove as she serves up the eggs on the plates. In the next shot as Dr. Forrester picks up the kettle, it is back in the corner of the stove. (00:42:20)
Continuity mistake: When Sylvia and Dr. Forrester are in the farm house, Sylvia cooks some eggs, then places the plates of eggs on the table. As she places them down you can see a plate with toast stacked on it. This plate disappears in the next shot of them both sitting down. (00:42:40)
Continuity mistake: When Dr. Forrester and Sylvia are eating in the farm house, as Forrester sits down he reaches for Sylvia's cup then commences to pour coffee in it. Yet in the following shot he no longer is holding the cup, and the cup has jumped back to its original place on the table. (00:42:50)
Continuity mistake: When the Martian saucer crashes in the farmhouse while Dr. Forrester and Sylvia are eating, a long shot shows the Martian saucer crashing into the side of the house. Then it cuts to an inside shot with the wall (with a window) being smashed from outside in. Then it cuts to an outside shot again showing the meteor having collapsed the side of the house that was caving in, in the inside shot, however the meteor has crushed almost half the house - far more than what was happening in the inside shot. (00:44:30)
Audio problem: When Dr Forrester and Sylvia are hiding in the farmhouse, just after the Martian eye enters the room, Dr Forrester says "An electronic eye - like a television camera" - however when he says "camera", his lips don't match the word. (00:46:45)
Visible crew/equipment: When Dr. Forrester whacks the tri-lens martian in the farm house, as it falls down you can see the wire attatched to it. (00:49:20)
Continuity mistake: After Dr. Forrester has whacked the tri-lens off of the martian, he picks it up and puts it on the table, and it rocks forward and falls on its front. In the next shot the tri-lens is sitting up perfectly again. (00:49:30)
Continuity mistake: The tri-lens of the Martian camera becomes detached from its casing after Gene Barry pounds it to death. When he picks it up and puts it on a table, it rocks forward and comes to rest, facing down, on the table: the tri-lens is now firmly attached to its casing. (00:51:30)
Revealing mistake: The tri-lens is now facing the movie camera and not facing down towards the table top when Barry attacks the Martian. (00:52:25)
Visible crew/equipment: After the demonstration at the blackboard, the big group of soldiers walk over to the big table with the picture of the world on it. As they walk away from the blackboard, they turn and walk down some steps, and as they do you can see the shadow of a boom mic pole on the upper side of the grey part of the wall. (00:55:40)
Continuity mistake: When Dr. Forrester is presenting the tri-lens in the lab, the red light at the bottom of the tri-lens is in a different position in the closeup and the cloth surrounding it is arranged differently too. (00:56:30)
Visible crew/equipment: A shadow of a mike boom can be seen to the upper-left of a window in a laboratory following a professor who is about to give a demonstration. (01:00:00)
Continuity mistake: After the attempt to bomb out the martians and there is white powder completely smothering the air, as one of the soldiers turns around to talk to the others, more white powder instantly appears on his face. (01:04:20)
Visible crew/equipment: A reflection of the film crew can seen in Sylvia's bus window. (01:10:30)
Visible crew/equipment: Near the end of the movie, a martian saucer crashes into a telephone pole. The wires holding the saucer up starts pushing-up against the wires of the pole causing the pole to move and break before the saucer even touches it. (01:21:35)
Continuity mistake: A hatch opens-up to the martian saucer showing a very weak, limp martian arm moving slowly and lying against the door. Next scene shows a wide angle view of the people and the arm but the arm is now touching the belly of the craft. Another scene change has a close-up of the arm again resting on the hatch. (01:22:45 - 01:23:45)
