Factual error: In the 5th season episode "Lexmas," Chloe says she needs Clark to deliver the Daily Planet's Toys For Tots contribution because of a Teamsters' Strike. However, the Toys For Tots program is run by the United States Marine Corps Reserve, and collection and distribution is handled by Marines and Reserves. The Teamsters have nothing to do with it.
Smallville (2001)
1 factual error in season 5 - chronological order
Other mistake: 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, with 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.
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Question: How realistic is Lana's physical therapy scene? She says she broke her leg in 4 places and hasn't walked in a month. She's seen struggling to walk using the metal bars to support herself, which Adam seems to suggest she could do "another lap" but that she quit. But then after struggling to walk, she's given her crutches and the therapist leaves, leaving her to walk on her own with crutches. If she struggled with the bars, could she use crutches? Or would she be in a wheelchair?