Continuity mistake: When Superman flies towards a mountain, the lava on the volcano behind him disappears.
Revealing mistake: Watch the cars and the grey truck during the LexTv scene. Whenever Luthor appears on screen the same cars are driving on the street.
Continuity mistake: In class, Jeremy has his body bent over his desk. When the angle changes he is sitting properly on the chair.
Continuity mistake: At the Great Wall of China, Nuclear Man points his hands forward and explodes the wall in front. As of then, there's no continuity between the position of his hands and the location of the places exploding.
Continuity mistake: When Lenny leads his car with the cops in, the car is facing a very short road ending in a small mount of rocks. The following wider angle shows a very wide open space with grass and a huge cliff.
Visible crew/equipment: Nuclear Man descends close to the statue of liberty to fight Superman. For a brief glimpse his supporting wires are seen.
Revealing mistake: It is way too obvious that when Luthor holds the dollar bill, his arm and hand have been replaced by a robotic prop. His arm manages to move without involving all the bones connected to the shoulder and the back.
Revealing mistake: While Superman carries the Statue, there's a close shot of Nuclear Man showing his fingernails. The movie behind is playing the wrong way, and gives the sensation that Nuclear Man is flying backwards.
Audio problem: When Superman is wounded on the neck, and when the italian villagers are saved, the same male falsetto voice is used to add a (crappy and out-of-sync) "Oooh!" and "Aaaah!".
Continuity mistake: When Superman enters the UN hall, a back shot shows the people in the upper bleacher clapping, but a frame later, the front shot shows them sitting still.
Revealing mistake: The close shot of people panicking when the Statue is about to crash against the pavement shows an old woman with a red wool hat and a white scarf. Many scenes later, when Nuclear Man lands on Metropolis, the same lady is seen, wearing the same clothes.
Continuity mistake: While the crowd follows Superman to the UN, the man with the balloons is first seen far away from him, but half a second later he is very close.
Continuity mistake: When Nuclear Man is destroying Metropolis his hair suddenly changes from messy to perfectly brushed.
Continuity mistake: Seen from inside the train-driver's seat, the tunnel is darker and with lights on both sides, but a shot of the tunnel alone shows it brighter and with no lights on the left side. Then it cuts back to the previous angle and everything changes back.
Continuity mistake: Nuclear Man lands in Metropolis and the cab driver on the left swaps several times from having his arm inside the car in the wide angles, to outside the cab's window in the close-ups.
Continuity mistake: When Mrs. Warfield waits for Clark in her office, there's a white sculpture on the table. From the back it's away from a brown object, from the front it's very close to it.
Revealing mistake: When in space, Superman punches Nuclear Man on the back, he turns around and his face has turned blurry and black, but his body keeps the same colour. In the immediate close-up the face's colour is fixed.
Continuity mistake: When Superman leads nuclear man inside the building to find lacy, an old man turns sideways to let Super in. A frame later he is back facing the door.
Continuity mistake: When Superman cools the huge river of lava, a bunch of fresh white and red carnations can be seen inches away. Perhaps they are an ultra-heat-proof breed?
Continuity mistake: A window shop with a red curtain and a TV set explodes and gets totally destroyed, but several seconds later when Nuclear Man plays around with the SWAT van we see it intact.
Answer: Lacy had gotten tired of her dad's newspaper, big-city life and decided to move to Smallville because she wanted to experience life at a much slower pace and even decided to live on a farm.