Matthew McConaughey had no idea his son Levi McConaughey wanted to act until he approached him about a role in his dad's new movie, The Lost Bus. "I had no idea he was even interested," Matthew, 55, told reporters while standing alongside his son at the Toronto International Film Festival premiere of the Paul Greengrass film on Friday, September 5. "I come home, you know, pitch the story to the family, as I always do, and I get to the part about my son, and [Levi] says, 'How old is your son?' I said, 'He's about your age.