In one magical moment, thirtysomething Mike O'Donnell gets a chance to be 17 Again, transforming from not-so-good dad to really cool friend to his teenage kids in this good-time time-warp comedy. In The Lucky One, based on a novel by author Nicholas Sparks, a U.S. Marine Sergeant goes in search ot the unknown woman whose photo he believes was his good-luck charm during the war.