Examples of comedy thrillers in films, plays and novels are "Charade", "The Thin Man", "The Lady Vanishes", "In Bruges", "Silver Streak", "Mr. and Mrs. Smith", "No Way to Treat a Lady", "Kiss Kiss Bang Bang", "Kshana Kshanam", "The Big Fix", "Lucky Number Slevin", "Deathtrap", "The Ladykillers", "Hopscotch", "Welcome to Collinwood", "The King of Comedy". Using only the above description and what you know about the world, "Mr. and Mrs. Smith is a serious thriller." is definitely correct, incorrect, or inconclusive? 