Other mistake: When Mulder is on his knees in the cafeteria talking to the gunman, there are several shots where you can see the sides of his jacket hanging wide open because of his raised arms, which would make the gun on his belt easily visible to the gunman as he talks to him, but he somehow doesn't see it until he goes to take Mulder's phone.
The X-Files (1993)
1 mistake in Folie a Deux
Starring: Robert Patrick, David Duchovny, Annabeth Gish, Gillian Anderson, Mitch Pileggi
The Post-Modern Prometheus - S5-E5
[After spilling coffee on his lap.]
Mulder: Great, now my crotch will be up all night.
Trivia: The Cancer Man smokes Morley cigarettes, a fake brand that has appeared in a number of TV shows and movies since the '60s.
Chosen answer: Yes.
Tailkinker ★