Continuity mistake: In the scene where Clark is on the fishing boat and is about to be "crushed" there is a bundle of rope that is dropped on the deck. The bundle changes from what looks like cut up strands when it drops, to a nice looped up solid piece when the camera cuts to him picking it up.
Add timeJason Swan
Continuity mistake: In one of the scenes where he is being bullied and is pushed against a fence by a group of kids, he's pulled out of the car while he is holding a book. Later when he is pulled up he uses his right hand, but in the shot afterwards the fence pole is bent by his left hand.
Continuity mistake: When Superman is fighting Faora and Nam-Ek in Smallville, his head is held to the ground by Faora. In this shot his hair is over his forehead. The camera switches quickly to a shot of the two holding him down and then back to him - his hair is now off his forehead.