Audio problem: After Clark is dumped into the blast furnace and the thieves make a getaway in their truck, you can hear the sound of an accelerating engine as it's driving away, but the brake lights are on.
Revealing mistake: Clark tries to stop the three guys who are inhaling refined kryptonite. As Clark gets tossed through a window, you can see the explosion of a small charge in the bottom left of the widow. Highly noticeable since Clark hits nowhere near where this charge goes off.
Trivia: Jerry Siegel, the co-creator of the Clark Kent/Superman character worked on a school magazine when he was at Glenville High School, Cleveland. The magazine was called The Torch - the same name of Smallville High's school magazine, edited by Chloe Sullivan and with Clark Kent as an on/off contributor.
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?