Screenwriters Matt Lopez and Mark Bomback have retooled the Alexander Key novel that provided fodder for the original 1975 film, creating a vehicle for Dwayne Johnson. Johnson is a sly delight here, playing ex-con Jack Bruno, who has traded in his NASCAR dreams to drive a cab in Las Vegas. In between trundling sci-fi geeks to a UFO convention, Jack picks up a pair of very anxious blond tweens named Seth (Alexander Ludwig) and Sara (AnnaSophia Robb). Once Seth halts a pursuing SUV with his breastplate and Sara levitates Jacks tip change, it becomes clear that Jack is dealing with two strays from outer space who have crash-landed in the desert. With government agents hot on his trail, Jack endeavors to spirit his young charges back to their ship. Johnson (the wrestler formerly known as the Rock) lifts the script above its conventional cat-and-mouse stratagems with his buoyant wiseacre timing. Contains sequences of action and violence, frightening and dangerous situations, and thematic elements.