Rick Kern/Getty Images Matthew McConaughey and his wife, Camila Alves, made a rare appearance with their kids for a good cause. The couple, who share sons Levi, 15, and Livingston, 11, and daughter Vida, 14, attended the 12th annual Mack, Jack & McConaughey Gala on Thursday, April 25, in Austin, Texas. McConaughey, 54, donned a…
