The jacket Jose Gomez wears in the police exam scene goes from being on to off to back on.
NYPD Sgts wear gold chin straps on their hats. Sgt. Cooper is wearing a black strap that only a detective in uniform would wear.
Demetrius makes mention of a bible scripture "Every man's sword will be against his brother". He says this is from the book of Daniel. It is actually from Ezekiel 38:21.