While the killer is with the second (female) victim, she is able to loosen/remove the duct tape across her mouth. The killer rips off a new piece, but after the cut scene, the piece applied to the victim is much shorter than the piece he ripped off.
When taking the passport photo, the pharmacist says, "Big smile." In the U.S, you are not allowed to show your teeth. If you do smile, it has to be very slight. Otherwise, the facial recognition software doesn't read your face correctly.
- However, in 1996 the facial recognition software was in its infancy, so this applies only from today's perspective -
After Alice Brandt's body was found, Scully was angry & walks back down the hill to the car. Mulder walks down after her (with his sidearm in its holder on his left side, and his watch on his right arm). This scene has been flipped.
In the next scene when he reaches the car, his sidearm is on his right, and his watch is on his left arm. Mulder is right-handed, so this is how he would carry/wear them.
Despite the setting in "Traverse City, Michigan" and the Michigan license plates, Scully examines boxes of film in the drug store, with the expiration date listed as "Expiry", a British (and more relevantly, Canadian) term.
As Mulder is looking at Scullys photo in the Sheriffs office one of the deputies tells him that Scullys Explorer was found at a park and ride up US81,US 131 runs through Traverse City M81 is in the thumb. From WikipedeA:M-81 is a state trunk-line highway in the Lower Peninsula of the US state of Michigan. The trunk-line travels from the city of Saginaw at the junction with M-13 to the junction with M-53 east of Cass City over the county line in Greenleaf Township in northwestern Sanilac County in The Thumb area of the state. Outside of the cities and villages along its route, M-81 passes through mostly rural farm country. Near Saginaw it intersects the freeway that carries both Interstate 75 (I-75) and US Highway 23 (US 23) in an industrial area.