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.

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: When Scully is in her room after the autopsy, we see the x-ray attached to her lamp. When we first see it, we can see the letters LD on it, yet when the shot changes back to the x-ray after Mulder has gone, we can only see I, presumably the other x-ray is now overlapping it.

Continuity: When we first see Scully, going into the office at the beginning of the episode, we see when she is on her way to the office and when she enters it she is wearing her badge, yet when the shot changes, it is no longer on her, then when she comes out she is wearing it again.

Continuity: When Mulder and Scully are driving after their plane lands, we see at one point that Mulder has his left hand on the wheel and he is eating a sunflower seed with his right, yet when the shot changes he's driving with his right hand and eating with his left.