Jack Black cons his way into the audience's heart in 'The Polka King'
Playing con artists seems to bring out the best in Jack Black.
As a scheming music teacher in "School of Rock" and an increasingly desperate manipulator in "Bernie," he didn't just give his two most distinctive screen performances: Stammering and improvising and hustling his way from one merry falsehood to the next, he turned deception into a kind of irresistible madcap art. Another actor might have tried too hard to win us
