By Eric R. Danton Even when the game is a dud, the Super Bowl halftime show is always an extravaganza. With a television audience that in some years has exceeded 170 million viewers, the halftime show’s producers are aiming for unforgettable moments with blockbuster acts, unlikely musical pairings and a general air of over-the-top bombast. (Dr. Dre, Eminem, Kendrick Lamar, Mary J. Blige and Snoop Dogg are this year’s performers.) There’s always pyrotechnics, wacky costumes or a field full of people waving glowsticks who look they’re having the best time ever for the 12 minutes usually allotted…