In a shocking upset, Tyler Perry's Why Did I Get Married easily topped the box-office with a much higher than expected $21.5 million haul. Ordinarily, I'm on the side of the underdog, but Perry's movies are so aggresively mediocre that I'm not looking forward to the glut of his product that is now certain to follow. Then again, Why Did I Get Married is hardly worse than The Game Plan which finished second in......