School For Scoundrels (2006)
Too nice? Too honest? Too *you*? Help is on the way.
School For Scoundrels tells the hilarious story of Roger, a dejected traffic cop who enrolls in "confidence building" class. Roger is tired of being walked all over and wants to win the affection of Amanda, the girl he loves. Roger and his classmates get much more than they bargained for when their domineering professor exhibits some unusual teaching methods and sets his own sights on Amanda. Suddenly, the mild-mannered geek squad must go from zeroes to heroes in order to stop being pushed around and win the girl back.