Smallville Season 3 Episode 6

When Clark opens his hand after receiving the medallion from the slot in the cave wall, the pointed tip was facing the camera, towards Clark's fingers. In the closeup shot, it was point to the side.

When Clark and Lana are looking through Louise's things to get some clues, Lana asks Clark to put her old necklace on her and starts to move her hair to the side. In the next shot her hair is already tucked to the side

Since Rebel Without a Cause was made in 1955, it is highly unlikely that it would still be playing it in theaters six years later.

When Clark is talking to Pete on the sidewalk after his vision, around time index 9:07, you can see a red and white truck to the left of the scene. That is a Canadian postal truck.

Early on in the episode Billy Tate introduces himself to Joe as Sheriff Billy Tate. Later on when Chloe gets a copy of Lachlan Luther's release papers it is signed by Deputy Billy Tate.

Could Clark talk any louder when talking to Pete about Jor-El, the cave, super-powers, etc., while outside with people walking around fairly close in the background?

Clark touches the car in the barn to get a flashback...to 40 years ago when the car was in the barn. So the same car has been in the barn for 40 years??

Why does Joe seem to be injured by Hiram hitting him? And how does Hiram manage to shove him to the ground?

How did Hiram and his wife know they were having a boy? Was medical technology that sophisticated back in 1961? (editor's note: even back then, people were "sure" they were going to have a child of a particular gender without medical technology. Weren't always right, though... :) )

In a closeup of Clark's hand holding the silver talisman, the hand had a callus - how does invulnerable super-healing Clark get calluses?

When the mayor touches Clark's shoulder, Clark gets a flashback to when Tate confronted Joe and Louise back in the 60s, out in the cornfields. But...in the flashback Tate leaves the scene. If Tate wasn't there, and Clark isn't at the cornfield, how is he having flashbacks to the scene? In the rest of the episode he has to be at the scene, or touching something at the scene when stuff he's seeing happened, to trigger and maintain the memory playback. Alien magic, I guess.