Matthew McConaughey has said his latest film The Lost Bus being based on a true story gives him “more purpose as an actor”. The 55-year-old was speaking at the London special screening of the film, which tells the story of bus driver Kevin McKay, played by McConaughey, who had to navigate a bus carrying children and their teacher to safety through the 2018 California Camp Fire. McConaughey told the PA news agency: “I saw the bones on the script, I was like, oh, this would be a movie worth making, even if it wasn’t based on reality, then the fact that it’s based on truth gives you more purpose, it gives me more purpose as an actor, to say let’s engage and take this ride. Speaking about his character Kevin, McConaughey added: “The character I play, it’s all about a guy who knows he was too late as a son, and feels like now he’s going to be too late as a father. Matthew McConaughey signs autographs at the screening (David Parry/PA)“That’s a nightmare thing for a parent or father to feel like and to battle for survival, because not only for you, but for your child, that’s a well of courage that I think parents can find from that.