Continuity mistake: During the battle in El Salvador, the jar on the chair behind Mike and his friend is shot. Some shots later, the jar has disappeared. (00:02:23)
Continuity mistake: When Mike and his friend escape from the helicopters in El Salvador, Mike's hair, clothes and camera are wet just before they pass in the river. They were not wet in the previous shot. (00:04:10)
Continuity mistake: When the spaceship is hovering overhead, we see various shots of the Maxwell family and others. In one shot we see the family from behind with a person in blue. We then jump to a shot from the front with that person not in picture. We then go to another behind shot and see the same person hurriedly moving into shot. (00:10:20)
Continuity mistake: When the old woman firebombs the Visitor craft, the scene changes from broad daylight to dusk, and then back to daylight again. The three Visitors standing in front of the 'Valley Cleaners' shop also disappear. (00:52:10)
Revealing mistake: When Donovan escapes from the L.A. mothership with Robin and the Mexican, he once turns the fighter he is using upside down by mistake. But since the passengers have their heads hanging down then, how come Robin's long hair does not?
V: The Final Battle: Part 1 (2 Hrs) - S1-E3
Continuity mistake: When Julie and Robert infiltrate the hospital using the forged passes, the pass is shown twice as it is inserted into the reader. In the first shot, it slides in down whole, but the reader is still buzzing. In the second, the card starts sliding in again.
V: The Final Battle: Part 2 (2 Hrs) - S1-E4
Revealing mistake: After the failed raid on the Resistance's headquarters, Brian shoots the counterfeiter who led them there, but no scorch mark appears on his victim's shirt (later victims have these scorch marks).
V: The Final Battle: Part 2 (2 Hrs) - S1-E4
Revealing mistake: When Julie is almost converted, a fake Donovan bursts in and starts firing a blaster rifle. Look closely at the first shot: the rifle is held way too high, so the shot should have gone into the ceiling; yet the blast goes straight forward.
V: The Final Battle: Part 2 (2 Hrs) - S1-E4
Plot hole: During the raid on the pumping station, Elias overpowers a Visitor guard and throws him off the catwalk - into a hall full of workers, engineers, and even more guards. Strange that no one notices.
V: The Final Battle: Part 3 (2 Hrs) - S1-E5
Continuity mistake: When the Red Dust is spread, there is a brief shot of some California citizens watching, and we see the Bernsteins among them. But the actress at George Mofogen/Mr. Bernstein's side is not Bonnie Bartlett, who played Mrs. Bernstein in the first two episodes.
V: The Final Battle: Part 3 (2 Hrs) - S1-E5
Revealing mistake: During the final battle in the mothership hangar, Donovan shoots a Visitor soldier who falls off his catwalk onto a transporter. When he impacts, a styrofoam block used to cushion his fall bounces off the roof.
V: The Final Battle: Part 3 (2 Hrs) - S1-E5
Factual error: When the world celebrates the Visitors' flight, there are scenes of joyous people from all around the world. Curiously, in each of these scenes it is daytime - even in Italy, China, and India, where it would be either night or dawn, given that L.A. time of the attacks is between 11 and 12 AM.
V: The Final Battle: Part 3 (2 Hrs) - S1-E5
Continuity mistake: When the heroes are trying to blast open the bridge door, Elias knocks the shell of the explosive off with the butt of his laser rifle, bending it. When they rush onto the bridge a moment later, the stock is straight again.
Revealing mistake: During the title sequence when Blair Tefkin's name comes up, Mike Donovan is riding a horse. A Visitor craft passes overhead and shoots at Donovan, but the laser appears out of nowhere instead of from the craft. (00:01:05)
Continuity mistake: The last time Donovan hits Diana's craft with a laser, he hits it on the right side. But inside the craft it's the left hand side that explodes. (00:04:40)
Continuity mistake: When Diana is being chased by Donovan after crashing her craft, she has her normal human eyes. But during Donovan's strangulation attempt she has lizard eyes. As we saw in the original series, a Visitor's human eyes had to be removed by hand before the lizard eyes could be seen underneath. (00:05:30)
Revealing mistake: When Donovan finds Diana's abandoned car in the desert, the outside shots of the chopper reveal that it is not Marc Singer at the controls. (00:36:40)
Revealing mistake: When Robert and Julie are attacked by snakes outside the cave, notice that in the shots when you see the backs of Robert and Julie there are hardly any snakes on the ground (I counted one) compared to other shots. The shots of Robert's leg as he sweeps the snakes away are almost certainly of a snake handler instead of the actor. (00:37:45)
Dreadnaught - S2-E2
Continuity mistake: When Elizabeth's arm is waving about above the cocoon, it is covered with scaly skin. But when she is seen standing up pulling the scaly skin off her face, both her arms have no scaly skin, and there wasn't enough time for her to remove it. (00:06:00)
Dreadnaught - S2-E2
Other mistake: After the transformation, Elizabeth is brought home. She lies asleep on the sofa. Who had the time to apply makeup to her? Her nails are shining, which means that someone has applied some polish on them. It is obvious that no actors (even male) will ever play without makeup; however, they should not have applied such an evident makeup to Elizabeth. (00:09:30)