Possible SPOILER: Questions about continuity/fine details

Rating: 8/10 (10 September 2006)

Spike Lee's first crime drama in a while... clever the way he hid the faces of the hostage- takers with the masks and also kept the faces of the hostages from being sharply-defined. When they were on the ground after they rushed out of the bank, none of them can be identified to the audience as being on one side of the "crime" or the other. The audience is surely searching each person in a painter smock to find Owens' character.
What, Denzel doesn't count hostages when he gets the tour of the bank in the middle of the night? Clive Owens' character walks out of the bank basement in the middle of the day wearing sunglasses? And is going to smell terrible and still manages to bump into Denzel's character? The antagonist banker character does not look old enough to have been involved in the Nazis at an age where he'd be a businessman? What was his occupation with them anyhow?
Strange that the final twist involves Frazier presumably giving his fiancé a diamond that would have belonged to a family that died at the hands of the Nazis. Maybe the gem would have been taken in as evidence and later sold at auction to a third party, but....