New Orleans cop Terence McDonagh (Nicolas Cage) earns himself an award for saving a man during the Katrina floods but in doing so leaves himself with a back injury and a reliance on prescription drugs. But prescription becomes non-prescription as Terence uses his position and a promotion to help himself to drugs out of the evidence room, holding up punks for them and basically feeding his and his prostitute girlfriends habits. But whilst trying to do his job and dealing with hallucinations things are getting out of hand.
I guess I watched a different movie to some who think that "The Bad Lieutenant: Port of Call - New Orleans" is a hilarious black comedy because I don't know how anyone finds anything in this movie which comes to comedy or black comedy. I also question how anyone could find this movie entertaining either because whether it was intended or not this movie is just a showcase for Nicolas Cage trying to show he still has it. Yes Cage still has something but he certainly hasn't got the dramatic talent he once was having picked up some over acting habits ploughing his trade in some poor movies.
As such if you manage to look beyond Nicolas Cage's performance which dominates the movie there is a storyline behind it with some sort of case which McDonagh is heading up whilst he has debts to deal with and so on. But it is incredibly difficult to get in to especially when you have Werner Herzog throwing in some kind of trippy shots which do nothing for the movie what so ever, oh I know they are intended to highlight the mental state of McDonagh but they are a director's touch which isn't needed.
What this all boils down to is that if you want to watch 122 minutes of Nicolas Cage trying to prove he still has it as a dramatic actor watch "The Bad Lieutenant: Port of Call - New Orleans". But if you want an entertaining movie about a drug addicted cop whose life and career is getting screwed up by his habit then look elsewhere.