Revealing mistake: Just after Agent Todd is seen going through the diary, there is a shot of the ship sailing past the camera. However the number 51 on the side of the ship is backwards, showing the shot is flipped. (00:30:20)
Revealing mistake: When the team run from the Captain's office at sunset, Gibbs closes the door as the last man out. However, a shadow can still be seen to move over the door. We know there is no-one else in the office. (00:38:05)
The Truth Is Out There - S1-E17
Revealing mistake: Gibbs finds a bunch of cash hidden in the victim's speaker. "For Motion Picture Use Only" is printed on them.
A Weak Link - S1-E22
Revealing mistake: When Gibbs and Todd are walking into the church, the camera shadow can be seen going over the seats on the left hand side. There is no-one other than Gibbs and Todd moving and the shadows are not possible from them. (00:25:00)
See No Evil - S2-E1
Revealing mistake: Just as Gibbs and Tony head to Mtec, we see a close up of the webcam on the General's computer. Note the brand name. It's been flipped. (00:16:40)
See No Evil - S2-E1
Revealing mistake: When the team speed into the lot at the end, tyre marks are visible on the ground from previous takes. (00:34:40)
Revealing mistake: As Tony and McGee drive off the numberplate is reversed. (00:14:40)
Revealing mistake: Kate pulls the record up on the screen near the start and there is some writing on the file. This is a copy of the file she has in her hands. However the writing on the file as seen on the screen is Kate's next few lines. (00:09:30)
Revealing mistake: When Kate is shot by Ari, Michael Weatherly flinches before the sound of the gunshot, in anticipation of the forthcoming squib explosion. (00:42:20)
Mind Games - S3-E3
Revealing mistake: When O'Neill starts taking Polaroid photos of Cassidy in the barn, Cassidy's blouse is properly buttoned up, but the second photo O'Neill takes shows Cassidy's blouse is being held together with a large safety pin, then the buttons are intact again. (00:39:10)
Revealing mistake: The shot when Gibbs shows up to the scene, as Ducky examines the "deceased" girl, you can see a pulse in her neck. (00:07:00)
Untouchable - S3-E20
Revealing mistake: When Tony is winding the cat up in the carry basket, we see a side shot when the cat "attacks" him. However looking through the side of the cage, you can see the cat is nowhere in sight and therefore unable to attack Tony. (00:07:50)
Untouchable - S3-E20
Revealing mistake: When the Lieutenant is explaining how her gun was in the victim's house, the camera pans behind Gibbs. Pay close attention and you can see a very faint shadow move across his back. Since we see there is nothing behind him on numerous occasions, it can only be part of the film crew. (00:18:20)
Revealing mistake: When DiNozzo is watching the ship through the binoculars at the beginning, the film is run in reverse. The sailor smoking on the deck is the giveaway, as the smoke he's blowing is going into his mouth. (00:00:15)
Revealing mistake: During season 4 the same television clip of President Bush and VP Cheney disembarking Air Force One is used on the background television in the squad room. In some cases the clip is running and not in unison, on three of the televisions in the same scene from shot to shot.
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
Raykvega423