Revealing mistake: At the episode's end, the sharp, moving background of nighttime Toronto from the top of the CN Tower suddenly shifts to a still, blurry (and glaringly obvious) matte image. The scene was partly shot atop the actual tower, but because high winds and sway made the location too dangerous, it was abandoned, and the bulk of the scene had to be shot in studio and processed. (00:37:15)
Close Call - S2-E25
Continuity mistake: Though the camera angle doesn't change, the brightly lit Chinese-character sign on the wall outside the window moves several feet to the right between takes. (00:09:10)
Close Call - S2-E25
Continuity mistake: In the establishing shot of the epilogue, it's 9:10 on the clock outside the station. But in the very next shot, it's 7:10 on the clock inside. (00:42:20)
Crazy Love - S2-E26
Factual error: Dr. Shawna Welsh's medical degree, visible on the office wall behind her while she talks to Nick, misspells the name of Johns Hopkins Medical College as "John Hopkins." (00:08:35)
Crazy Love - S2-E26
Continuity mistake: The flashbacks here contradict series canon. Nick's victim, Amaya, is shown to have been bitten (by him) several times. In every other instance, unless he had multiple captive ladies to "sip" from, Nick's bite was fatal in one go. In fact, it was a major recurring plot point that Nick "couldn't stop."
Continuity mistake: Nick and Tracy find a crying but uninjured baby, the only mortal survivor of the plane crash, in the wreckage. Yet in part 2, Nick tells Urs that Vachon was the only survivor. (00:10:45)
Factual error: In the flashbacks, the shipboard lifesaver rings are emblazoned with the incorrect designation "S.S. Titanic." The Titanic was a Royal Mail Ship. The stencil should have read R.M.S., not S.S. (00:14:00 - 00:24:50)
Revealing mistake: When Nat enters Nick's loft from the lift, the bright lighting reveals that there is no break in the solid floor to allow the movement of a real elevator. (00:36:45)
Factual error: When the Inca is threatening Tracy in Spanish, the translation subtitles read, "He thinks he has invaded me." They were supposed to say, "_evaded_ me." (Note: This has been corrected in the dvd set released 10/06.) (00:41:00)
Continuity mistake: When he's rescuing Tracy at the end, Vachon bites Vudu. But when Nick arrives and props up the dying man, there are no marks and no blood on his neck. (00:39:45)
Blind Faith - S3-E5
Plot hole: In a major violation of series canon, this episode ends with the vampire doggie (a silly enough premise to begin with) bringing its owner across, a process previously established as complex enough to be far beyond even the smartest canine's capabilities. (00:40:00)
Plot hole: Bullets, which have been passing harmlessly through Nick for two whole seasons, suddenly do him great injury here. And though he's taken to surgery, the bullet lodged in his head is never removed. It's still there on the latest x-ray when LaCroix arrives to "consult" with the doctor. (00:00:05)
Plot hole: Because he has no discernible vital signs, the wounded Nick is declared dead in the hospital. When he revives, he's rushed into surgery, where he'd surely have been reattached to a monitor. Somehow, though, no one on the medical staff notices that their patient still has no normal pulse or heartbeat. (00:05:05)
Continuity mistake: The blood stain on Tracy's lapel changes its shape several times between takes. (00:08:15)
Factual error: LaCroix visits the comatose Nick in the hospital and detaches a pulse monitor that A) shouldn't be beeping, seeing as it's attached to a vampire, and B) should have immediately sounded an alarm when it was removed. (00:08:30)
Plot hole: When LaCroix arrives at the amnesiac Nick's loft, Nick recognizes him as "the doctor from the hospital." But Nick was still comatose when LaCroix posed as a doctor and came to his room, so he shouldn't remember that particular "doctor." (00:19:45)
Visible crew/equipment: While Natalie is stocking Nick's kitchen with groceries, a shiny pot on the shelf over the stove captures a reflection of several crew members standing on the other side of the set. (00:24:55)
Continuity mistake: The actor playing the bad guy apparently didn't stick to the script. What he says on the phone, telling Tracy where to meet him, and what she writes down for Nick to find later, don't match at all. (00:35:00)
Visible crew/equipment: When Natalie is telling the amnesia-stricken Nick that he's a vampire, an equipment shadow moves across the stove in the lower right hand corner of the screen. (00:35:15)
Continuity mistake: The clock on Natalie's lab wall jumps forward almost half an hour during a 2-minute conversation with Nick. (00:27:25 - 00:29:05)
Answer: Nick was sick and tired of being an immortal bloodsucker. He wanted to be human, fall in love, get married, have children, grow old and die. As for Janette, according to her, she fell in love and the passion she felt "cured" her of her blood lust.