Continuity mistake: The car where the guy is killed is a 1970 Ford LTD convertible in front but a 1969 Ford LTD from the rear.
Continuity mistake: At The End of Max's seizure Mulder holds him under his chin, but in the next shot he holds his hands. (00:26:30)
Continuity mistake: When Michelle is driving her car, the back shots show some label to the left of a driving wheel that is missing in the front shots. (00:15:10)
Continuity mistake: When Michelle's car lays upside down, one can see that it has headlights with two lamps on each side, but in the previous shots her car has only one lamp on each side. (00:15:45)
Continuity mistake: During Colonel Belt's funeral, there are saluting soldiers standing behind Michelle in some shots, while in others they are not there. (00:43:45)
Continuity mistake: When Skinner is stopping Mulder from hitting Krycek, in the back shot Mulder keeps his hand on Skinner's neck, while in the front shot he keeps his hand somewhere else. (00:31:50)
All things - S7-E17
Other mistake: The surname on the envelope is "Szczesny" (which is of Polish origin and means "Lucky"), so its pronunciation should be something like "shtcheznhy." However, in the subtitles the surname is written as "Szezesny" and pronounced by Scully accordingly. (00:06:30)
The Goldberg Variation - S7-E6
Continuity mistake: When Henry is hit by a truck, the lower part of his body is located under the vehicle, but when Mulder walks up to him, he is lying beside the truck. (00:32:50)
Continuity mistake: The drawing image of the killer loads twice on the computer. You can see it start to load in the first shot which is closer. In the very next shot it loads from nothing again.
Visible crew/equipment: When the apartment owner comes over to the killer's apartment, she puts an envelope over near others. Right as she notices the flies, the camera tracks to the left and back. You can see its shadow cast on the wall to the left.
Continuity mistake: Later in the episode a man bangs on an air conditioner to try and stop it from making noise. In the first scene you can tell air is moving because the streamers are moving. After he bangs on the unit the streamers stop moving. The air conditioner is still on. (00:32:30)
Audio problem: J.T. Walsh is talking to Mulder and Scully about how smart the inmate was. During this sequence, one of the scenes has very poor audio sync. J.T. Is talking but his mouth doesn't match what he is saying. (00:07:25)
Millennium - S7-E4
Factual error: When Mulder wants to shoot the third resurrected agent, it turns out that there is no ammunition left in the revolver. In fact, there should be one bullet left. When Frank Black takes the handgun from the necromancer, one can see that the cylinder is full with six bullet. Then, he fires three bullets into the first resurrected agent and two bullets are fired by Mulder into the second resurrected agent. (00:39:05)
The Sixth Extinction (2) - S7-E1
Factual error: When Mulder is visited by his mother, he definitely shows brain activity, because he is "talking" with her, however there are only flat lines on the monitor. In a similar situation in "The Sixth Extinction" episode, when Kritschgau and Skinner ask him questions and he anticipates them, the monitor shows intensive bursts. (00:01:15)
Millennium - S7-E4
Continuity mistake: When Skinner walks away from the conference table, his armchair is only slightly turned left from its normal position towards the table, but when he comes back with additional documents, the armchair is turned left to the position perpendicular to the table. (00:10:20)
Millennium - S7-E4
Continuity mistake: When Scully stops by the fence that leads to the necromancer's property, there is only one red car parked that seems to be Frank Black's car. It seems that Mulder's car and the necromancer's car vanished into thin air. (00:38:40)
Continuity mistake: When the two pieces combine into one and burst up into the Bible, in the first shot the neighboring books are leaning against the Bible, while in the following shot they are arranged in a neat pile. (00:05:30)
The Sixth Extinction (2) - S7-E1
Continuity mistake: From The Beginning of the episode Scully has loose strands of hair on both sides of her head, but when she turns off the lamp and is attacked by locusts, her hair is perfectly combed. (00:02:35)
Other mistake: When Padget supposedly tears out his heart with his hand and keeps it in his hand, one can see that the heart's blood vessels were not torn out but must have been precisely cut with some surgical tool. (00:01:50)
Continuity mistake: When Mulder lies on the bed, he's wearing shoes, but when Scully tells him goodbye and he gets out of the bed, he's not. (00:24:10)
Answer: As he stated many times throughout the series, Mulder needed Scully to be sober and skeptical. Whenever Scully's skepticism wavered and she started questioning her own rationality, Mulder would try to restore her sense of skepticism, because he needed her to be clear-thinking.
Charles Austin Miller