When Clark tells Chloe that he found Martha passed out, he says he found her in the field, but Martha fell in the driveway.
The shape of the Kryptonite stone that professor Fine is holding to weaken Clark changes from shot to shot.
Professor Fine, while in the fortress with Clark, calls for General Zod. In later session, he is referred as Major.
Clark wonders how Lionel could have learned that Milton Fine was of Kryptonian origin. However, while controlling his body in "Hidden", Jor-El told Clark that Lionel had become "an oracle of all Kryptonian knowledge."