Other mistake: Pay close attention to the taxi cab at the end of each show when it drives away the contestant who was just fired. Look at the taxi number on the passenger side door when it is first opened. You then see the number change after the taxi drives away.
Other mistake: When Mattie first gets her kite out, Richard says that they are in the same fjord where Jeremy and James went through the ice. If so, the scenery has changed remarkably in a couple of days. All the blue ice is gone and so are the cliffs, which prevented Jeremy and James driving out. He can't have taken a different route as the fjord is only a mile wide.
Other mistake: Dave injured his left wrist and it was placed in a black cast. Dave wears his watch on his right wrist and has the pen in his right hand as he is right handed. He is shown taking an order right handed, but in a closeup, the shot is reversed, showing him writing left handed and the cast on his right wrist. (00:25:46)
Other mistake: Renee Graziano gets in vehicle to be shown driving to visit her father in a federal penitentiary. As the vehicle is shown, the picture is reversed, and the driver's side is shown on the right, which you can see by the windshield stickers are on the right, not the left. (00:01:51)