Revealing mistake: The fight scene between Peter Kurten and Andy outside the gay bar is viewed from behind a metal gate. Peter smashes Andy's head into the gate twice. The bars of the metal gate bend towards the camera as if they are made of rubber.
Revealing mistake: Harry Connick, Jr. obviously has black ink or something on his tooth to make it look like his tooth is broken. You can tell while he's talking that what you should be able to see behind his teeth if there really was a gap is not there.