Other: Lois digs up Chloe's grave site to unearth her casket. It is obvious that the casket is not buried six feet deep. You would think, will all that is going on, that LuthorCorp would have at least buried the casket deeper to deter inquisitive eyes and maybe throw in a few scattered bones for good measure.

Factual error: In the opening credits for episode 5-1: "Arrival," Kristin Kreuk's first name was misspelled as "Kristen." The credits sequence, which was new for Season 5, was corrected by the time the second episode of the season aired. Submitted by DavidK93

Continuity: The Porsche that strikes Clark has no sign of impact when it goes over the side of the bridge.

Continuity: Clark's hands on the hood of Jeremy's truck shift in different shots from spread wide to in front of him and close together.

Revealing: There are times when it is quite evident that Michael Rosenbaum is voluntarily bald. Submitted by MoonFaery

Other: In episode 4-14: "Krypto," Genevieve tells Jason that the heirs of a 17th century woman named Gertrude are in danger. She then tells him that they themselves are "Gertrude's ancestors." But she must mean descendants, which means the opposite of ancestors. Submitted by DavidK93

Continuity: After the meteor shower, the bit of hair that Mr. Luthor finds in the cornfield changes in his hands from stretched straight to curled.

Continuity: While climbing ropes in the gym, Clark and Pete switch sides relative to each other. First Clark is on Pete's left, then he is suddenly on Pete's right.