When Dean is picking the handcuff lock to get away; we see him pick the lock on the cuff around his wrist, however when the camera shows the door once Dean has escaped the handcuffs are not hanging from the handle.
When Officer Kathleen is accessing Sam and Dean's records on the County's Police Records database, the heights of both brothers are listed as 6'4". This is incorrect as Dean is several inches shorter than Sam. Jensen Ackles is actually 6'1"-6'2".
When Dean enters the cellar for the first time, his lips are moving but there is no audio to match it.
The city the story is set in, Hibbing, MN, is not in "Hibbing County," as is painted on the city police vehicle. (There is no such county in Minnesota.) Hibbing is actually in St. Louis County, MN.