Closeups and wide shots on the Wall of Weird show different things next to each other. Watch the objects surrounding the finger article and the Wall of Fire article in the wide shot on Chloe, then look again at the closeups.
When Clark starts to argue with his dad about the truck Lex gave him, he throws his backpack and jacket down on the stairs in the barn. He goes over to the woodchipper and shoves his hand in it, the camera pans to his dad and you can clearly see the stairs behind him, the backpack and jacket are no longer there. Also when Clark storms up the stairs after he's done arguing with his dad, the backpack and jacket are no longer there.
When Clark finds Lex in the Luthor mansion, they walk down the hall and into a new room. As they enter, as Lex is saying "So, how's the new ride?" if you look in the bottom left of the screen you can see a white tape marker on the floor, where Lex will walk over to subsequently.
Lana rides up to the cemetery on a horse but later walks home with Clark, leaving the horse behind. However, the cut is actually directly from the cemetery to a scene showing Clark and Lana walking towards Lana's house from the stables. Obviously they walked to the stables, with the horse, and left it there.
A spaceship would never come to Earth together with meteorites, if they all started journey together, as a spaceship has a propulsion and travels faster than parts of planet that exploded and just floated across universe.
The Porsche that strikes Clark has no sign of impact when it goes over the side of the bridge. Clark is meant to be a "Man of Steel" and definitely would have caused visible damage to the Porsche as it flies over the edge.
When the meteor hits the road in front of Jonathan and Martha's truck, Jonathan slams on the brake, trying to stop the truck, but then the shot changes to a different camera that shows the truck casually driving into the smoke.
Before Lex hits Clark, it shows the truck coming off the bridge, and Lex's car close to coming on the bridge at 60 mph. Then it shows a shot of Lex inside the car, and through the window, it looks like he is driving in the middle of a field instead of on the bridge.
The goof item below may give away important plot points.
When the Kent truck flipped over in the ditch created by the spacecraft, they were suspended from the seat (now the ceiling), presumably by lap belts.
However, the timing when getting into, and their behavior in the truck, suggests that they did not put the lap belts on.