Continuity mistake: When Pete and Myka first get to Warehouse 13 and walk up, the football that flew at Pete is lying on the ground close to the open door. In the overhead shot, the ball is gone, but is there again in the next closeup.
Continuity mistake: After the crash, Myka helps Pete out of the wreck. There is blood on his shirt, which disappears when he sits down on the road.
Revealing mistake: When Soliday becomes possessed and grabs the steering wheel of the car, you can see the small explosion effect that causes the car to flip.
Continuity mistake: When Myka pulls up to the warehouse for the first time, Lattimer's car is nowhere near where she parks, and it can't be seen when they are talking for a moment. When the door opens, however, we see both cars fairly close to each other, but if they really were that close, Lattimer's car would have been visible in the previous shots.
Factual error: The bank robbery scene is supposed to take place in downtown Chicago, but streetcar tracks can be seen on the road outside the bank, and a street sign for York Street can be seen at an intersection. Chicago has neither streetcars nor a York Street. (The scene was filmed in Toronto.).
Factual error: In the banner for the exibition in France at the start, the French isn't right. It says "Opéra nationale" and "La morte de Marie Antoinette Des objets fabriqués de le temps de Marie Antoinette". It should be "Opera national" and "La mort de Marie Antoinette Des objets fabriqués à l'époque de Marie Antoinette" or "des objets fabriqués du temps de Marie Antoinette".
Revealing mistake: When Artie demagnetizes the lab coat, Claudia falls from a high altitude, but when the shot cuts to her landing on the raft, you can see that the actor jumped from a position much closer to the ground. (00:39:00)