Continuity mistake: As Mulder and Scully enter into the building that houses the bees is seems Mulder's tie gets blown over his right shoulder and then he is seen inside and it is over his left shoulder. (01:00:30)
Continuity mistake: While John and Emma are talking on the phone at the prison, Emma smiles and says she loves him. In the shots of John, we can see her reflection and she is not smiling. (01:05:00)
Continuity mistake: Matt Dillon writes "Sex Crimes" on the board, underlines "Crimes" once, and puts down the chalk to talk. However, when the board is next shown, when he asks the students to welcome the detectives, you see that "Crimes" has been underlined twice. (00:05:50 - 00:06:23)
Continuity mistake: Velma adds books to the pile in front of her when she takes the telephone order. Looking down the pile, you don't see any trace of the random loose papers that appear when she hauls the whole lot to the desk with the TV on. (00:06:25)
Visible crew/equipment: When the Nihilists are ordering food at the restaurant, you can see the reflection of the camera and cameraman in the window behind them. Watch as the scene pans around and you can see the camera and the cameraman move as well. Could the person behind the camera be Roger Deakins? (01:34:20)
Continuity mistake: When Julia is explaining the conspiracy to Rick in the stairwell, the position of Rick's hands in front of his face change between shots. (01:03:25)
Continuity mistake: When the four are walking to the hotel, as they walk under the outdoor archway, Tyrell's glasses move from up on his head, to on his nose, to back up on his head between shots. (00:25:50)
Continuity mistake: When Casey and Delilah watch Nurse Harper get infected by Coach Willis from inside a closet, the closet's shutter windows switch from closed to open between shots.