Alias

The plates on the cars that are supposed to be BC (British Columbia) plates are wrong in multiple ways. First, BC plates are royal blue and white, not black and white as shown. Second, the flag shown in the middle of the plate (a largely orange sun) was not not the BC flag (a yellow sun rising over blue and white waves with the Union Jack above it). And third, the car Lauren and Sark hit was shown to have the license 85E APL but only commercial vehicles have mixed numbers and letters in a single grouping of three; until 2007 all privately owned vehicles had a series of three letters followed by three numbers, since 2007 three numbers followed by three letters have been used to account for the number of vehicles on the road.

The skyline shown for Vancouver, BC, was not Vancouver. Not only were none of the landmark buildings there, the North Shore mountains (Cypress, Whistler, Grouse, and the Lions) were nowhere in sight.

Marshall officially has a son named Mitchell.

Goof: Right after the debriefing session Syd and Lauren walk out and talk together and Weiss and Vaughn talk together. When from the perspective of Vaughn he watched Lauren walk away when she was done talking with Sydney. When from the perspective of Lauren she finished talking with Sydney and then turned to look over were Weiss and Vaughn where but only Weiss is there.

When Arvin Sloane calls Dr. Judy Barnett to apologize for his rudeness, and wishes to make amends, he makes the comment that their conversation would have been much more relaxed with "a nice bottle of Chateau Briand on the table" (at least it sounds like Chateau Briand). He makes the comment "in vino veritas", indicating that this is clearly supposed to be a wine - which would explain the bottle - but Dr. Barnett can be excused for sounding confused as Chateaubriand is a cut of beef! (a.k.a. tenderloin) It is more likely that the wine he mentioned was "Château Haut Brion".

Goof: In the second take of Lauren and Sark speeding away, the back windscreen has already been shot at long before Sydney fires a shot, then when she does actually fire the shot the windscreen is perfect again.

Syd and Vaughn hop right into the F-150 and start driving. No hotwiring needed?

Some of the dialogue between Lauren and Vaughn changes between the two different "perspectives" - there's a couple of missing lines of dialogue the second time around.

Despite the fact the second perspective/narrative is supposed to be from Lauren's point of view, there are several scenes of things when she isn't present and in fact are things we saw the first time from Sydney's perspective.

When Sydney and Vaughn are driving through the parking garage you can see the stunt man driving the F-150 in one of the shots and he doesn't look a thing like Vaughn.

No airbag inflated in any of the four colliding cars.