“Sometimes,” says self-made musical impresario Jan Lewan (Jack Black) in The Polka King, “to make money you have to spend money.” The problem with Jan is he didn’t spend money sometimes, he did it every time. Every get-rich quick scheme he ever hatched up in his Pennsylvania gift shop required more investment than potential profit. He sold his polka fans on a “premium Pope package,” a lavish vacation to Rome that included a private audience with the Pope. But Jan had no way to deliver on his promise, so he just showed up at the Vatican with a briefcase full of cash. He got his audience, and delighted his tour group. But his “premium” vacation surely cost him more than he made.