Now, McConaughey is back, and in the driver’s seat for The Lost Bus, and he’s not just hot again — he’s on fire. “One of the things I was reminded of when I came back and acted as Kevin in The Lost Bus was how much I love acting,” McConaughey says. McConaughey stars as Kevin McKay, a down-on-his-luck school bus driver whose fractured personal life is overshadowed by the life-or-death task of shepherding 22 children through a raging inferno. His real-life son, Levi, makes his acting debut as Kevin’s son Shaun, while McConaughey’s 92-year-old mother Kay McCabe McConaughey appears as his on-screen mother. No — you’re 28 minutes into a scene, you’re not looking for moves, you’re just reacting.”McConaughey had a new experience on The Lost Bus in sharing the screen with his own family.