Visible crew/equipment: When the Lone Gunmen return to their van after meeting Jimmy, when Langly opens the driver's side door, you can see the reflection of two crewmembers' feet in the rear view mirror. (00:24:20)
Audio problem: After Frohike says "There must be a file dated the day of Jeff's murder", his lips are still moving but no sound is coming out. (00:15:15)
Trivia: The name of Byers' father is Bertram. In The X Files episode, "The Unusual Suspects," Byers tells the police that his name is John Fitzgerald Byers, born on 11/22/63, and that before JFK's assassination, his parents were going to name him Bertram.