Deliberate mistake: The shot of the mothership landing bay and the arrival of Charles' ship is stock footage that has been used several times before. There is also a continuity error here - the view from the landing bay shows darkness outside, but the next shot shows broad daylight. (00:06:20)
Continuity mistake: When Elizabeth is pricked by the rose, there is a closeup of her bleeding finger. Before and after this shot Kyle is holding her hand, but not in the closeup. (00:03:25)
Audio problem: Just before Mike and Ham start shooting up the bridge, Jacob is seen being tortured, but his mouth is not moving with the sounds he is supposed to be making. (00:24:40)
Continuity mistake: When Kyle is with Donovan in the warehouse shooting at Philip, you always hear a bang coming out of the machine gun but sometimes a fire blast is not seen.
Revealing mistake: The two Elizabeths are both played by the same actress, except in the shots where both are seen together. Continuity mistakes in the second Elizabeth's death scene reveal this, such as the second Elizabeth's head position changing, and the first Elizabeth's jacket being open/closed between shots. (00:42:30)
Continuity mistake: When Diana is about to eat the white mouse, Donovan puts the tray of mice down on the bed, then in the following shot he puts it down again. (00:28:10)
Continuity mistake: When Ham Tyler is fixing the van in the garage, there is sunlight shining on him when the camera is facing out onto the street, but there is only normal daylight when the camera is facing inside the garage. (00:24:25)
Continuity mistake: When Mike pulls the necklace off the fake Julie, Julie's head is lying at a slightly different angle than when she changes into Lydia. (00:39:20)
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: Mike Donovan (riding a horse) is chased by a Visitor shuttle. It is obvious that there were recycled some shots from "The Final Battle" (Ep. 1). In "The Champion", Donovan does not have a laser pistol. However, there are some shots in which he has that pistol: obviously, those shots are taken from TFB.
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.
Visible crew/equipment: When Julie says 'We're gonna stand and fight' near the end of the episode, a boom mike briefly creeps into view at the top of the screen. (00:42:15)
Revealing mistake: When the two wildcats throw hand grenades at the Visitors, the grenades are obviously fake because the explosions do not occur at the same place as where the grenades land. The detonations have obviously been located in a safe place away from the actors. (00:11:50)
Revealing mistake: When James' craft touches down outside the Sheriff's office, the wires suspending it from above are visible. (00:33:50)
Revealing mistake: An obvious stunt double replaces Marc Singer when he kicks the sheriff's shotgun out of his hand, and also when the truck drives into the lake. (00:05:10)
Visible crew/equipment: The boom mike is briefly visible at the top of the screen when the woman on the horse rides up to Mike and Kyle. (00:06:10)
Continuity mistake: When Willie dies, Howie says 'he's gone' but Willie's head position changes between shots. (00:24:55)
Deliberate mistake: The shot of Willy running away from the parked car is taken from the episode where Elias is killed. Two things give this away - 1) Willy is wearing a different coloured jacket and 2) he is supposed to be seriously injured yet he sprints along the street. (00:08:50)
Revealing mistake: When John is holding the two mice, if you watch his left arm closely you can see his arm jerk beneath the table where he replaces the real mouse with an edible one. (00:20:50)
Continuity mistake: When Charles reads the message about Nathan Bates coming out of the coma, there are two things to look for during the closeup of the note. The logo on the top is replaced by writing and he grips the note in a different position from before. The writing changes yet again when the note is seen from behind. (00:13:35)