The X-Files (1993) - 42 mistakes in series 1

Continuity: When Scully goes to Mulder's room, thinking she has the marks, after he has checked her we see Scully's hair is behind her collar, but when the shot changes to her going to sit down, her hair is now hanging out.

Continuity: The first time Scully walks into Mulder's office, we see his "I want to Believe" poster in full view. Later on in the scene, we see papers stacked in front of it.

Visible crew/equipment: When Mulder and Scully are talking about Howard Graves faking his own death, when they get to the bottom of the stairs, you can see the pole which the camera used to travel down the stairs.

Factual error: Scully tells Mulder that Ruby is alive, so why is she performing CPR on her?

Revealing: While the computer is being infected with the virus, Peterson turns away from the screen to face Scully. Two seconds later, after the shot of Scully, the same shot is shown again but in reverse so that Peterson turns back to the screen. It's more obvious if you look at the weird way his eyes blink in the reversed shot.

Continuity: When Scully is having lunch with her friend just after the intro, we see at one shot from behind her she is holding a knife, then when the shot changes she is no longer holding it.

Continuity: Howard Graves' tombstone states that he died on the 5th of October, but the opening scenes date stamp says the 22nd of September when it was supposed to be two weeks after Graves had died.

Continuity: When Mulder and Scully are questioning Lauren in the investigation room, the piece of paper on Mulder's jacket changes place in between shots.

Continuity: When Tooms is in the cell right at the end, we see when his food is being brought over to him on the tray that there is a drink and a bun, when the shot changes to the other side of the door the drink and bun have swapped sides. When the shot changes back to the other side of the door, the tray is now the other way around and then when the shot goes back to the other side the whole tray has now disappeared.

Continuity: When Mulder helps Max lie down he notices the scar behind his right ear but when he tells Scully about it later he says that the scar is behind his left ear.

Plot hole: At the end, a man is attacked while standing in the light of his automobile's headlights. Supposedly, though, the bugs were terrified of light.

Continuity: When Mulder and Scully are going to the caravan for the first time, you can see a person walking in the background, but when the shot changes they are no longer there.

Continuity: When Mulder and Scully are leaving Laurens house, when we see the doors lock themselves they are different locks to what the car actually has.

Continuity: At the beginning when a man says: "We're not who we are", he says it differently when Scully watches the tape.

Continuity: When Mulder is running after the boy near the end, and the motorcycles are coming, we see him throw the torch quite far away, yet when the motorcycles are gone we see it is right next to him.

Plot hole: Mulder and Scully are driving after the women to the command center, it is raining hard. The woman has an accident and Mulder stops to check on her, it isn't raining anymore. They were right behind her.

Continuity: After Mulder has been released from the containment cell, and he and Scully go back to his room, the items on the table change position in between shots.

Continuity: When Scully is doing the exam on the dead guy on table, he blinks and breathes.

Continuity: When they find the felled ancient tree, the stump that Mulder clambers up onto to investigate the growth rings has a distinctive crack at the center and the growth rings are irregular in shape. However the stump that we get a close up of has no crack and regular circular rings.

Continuity: In the close-up shot of Mulder just before he shoots Barnett, his black ear piece disappears.